The least-squares regression line for predicting the 2016 budget from the 2006 budget is y = 18.18 + 0.9365x, their budgets to differ in 2016 is 9.365 million and the budget for organization is 111.83 million.
In a regression graph, the regression line closest to the data points is shown. By replacing alternative values of x in the regression equation, this statistical technique can assist analyse the behaviour of a dependent variable y when the independent variable x changes.
The corporation can identify the optimal asset price in relation to the cost of capital by using regression. It is used in the stock market to calculate the impact of stock price movements on the price of underlying commodities.
Regression analysis may be used in marketing to understand how pricing fluctuations affect the rise or reduction in products sales. It is particularly successful in forecasting future sales by correlating market factors, weather forecasts, economic situations, and prior sales.
a) Here we find the least square regression line for predicting the 2016 budget :
Regression line y = a+bx
b = \(\frac{n(Exy)-(Ex*Ey)}{n(Ex)^r-(Ey)^r}\)
= \(\frac{2216256 - 1219050}{2220421-1155625}\)
= \(\frac{997206}{1064796}\)
= 0.9365
a= y-bx
= \(\frac{Ey}{n} -b\frac{Ex}{n}\)
162 - (0.9635 x 153.5714286)
= 162 - 143.819
= 18.18
y = 18.18 + 0.9365x
b) For 10 million change in 2006, there will be
= 10 x 0.9365 = 9.365 million change in 2016
c) If x = 100,
y = 18.18 + 0.9365(100) = 111.83 million.
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Complete question:
Organization 2006 2016
Corporation for Public Broadcasting 460 445
Institute of Museum and Library Services 247 237
National Endowment for the Humanities 142 148
National Endowment for the Arts 124 148
National Gallery of Art 95 147
Commission of Fine Arts 2 3
Advisory Council on Historic Preservation 5 6
Source: National Endowment for the Arts
a. Compute the least-squares regression line for predicting the 2016 budget from the 2006 budget.
b. If two institutions have budgets that differ by 10 million dollars in 2006, by how much would you predict their budgets to differ in 2016?
c.Predict the 2016 budget for an organization whose 2006 budget was 100 million dollars.
Jenny has 3 times as many storybooks as David. David has 60 fewer storybooks than Huiling. They have 460 storybooks altogether. How many storybooks does Jenny have?
Answer:
240
Step-by-step explanation:
Since David has 60 fewer storybooks than Huiling, take the total number of storybooks, which is 460 and minus it by 60.
460-60=400
Now, there are 5 units, 5units=400
1unit=80
Since Jenny has 3 times as many storybooks as David, Jenny has 3 units, 3unit=80x3=240
Tip: Draw a model to help you visualise the question better.
Order -3, 5, -10, 16 from least to greatest. then order the same numbers from closest to zero to farthest from zero. next, describe how your lists are similar to each other. please answer the last part cause we are in need of help plllllllllllllllllleeeeeeeeeeeeeaaaaaaaaaaaaaaase.please thank you
The similarity lies in the fact that both lists contain the same set of numbers, but their order is determined by different criteria - one based on magnitude and the other based on distance from zero.
Let's order the numbers -3, 5, -10, and 16 as requested.
From least to greatest:
-10, -3, 5, 16
The ordered list from least to greatest is: -10, -3, 5, 16.
Now let's order the same numbers from closest to zero to farthest from zero:
-3, 5, -10, 16
The ordered list from closest to zero to farthest from zero is: -3, 5, -10, 16.
Regarding the similarity between the two lists, both lists contain the same set of numbers: -3, 5, -10, and 16. However, the ordering criteria are different in each case. In the first list, we order the numbers based on their magnitudes, whereas in the second list, we order them based on their distances from zero.
By comparing the two lists, we can observe that the ordering changes since the criteria differ. In the first list, the number -10 appears first because it has the smallest magnitude, while in the second list, -3 appears first because it is closest to zero.
Overall, the similarity lies in the fact that both lists contain the same set of numbers, but their order is determined by different criteria - one based on magnitude and the other based on distance from zero.
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Write an equation for a line with a slope of -2, and a y-intercept of 1.
Find the inverse of each function. Is the inverse a function? f(x)=√x+3-4
The inverse of the function is x²+8x+13
In mathematics, an inverse function is a arithmetic operator that "reverses" another function: if the function f applied to an input x gives a result of y, then applying its inverse function g to y provides the result x, and contrariwise, i.e., f(x) = y if and only if g = x.
To get the inverse of any function f(x) [ just make sure that it passes the horizontal line test] follow the steps:- Solve for x, i.e separate x in one side and the other terms in the other side, included f(x).-
Swap x and f(x).-
The result is the inverse of the original function .
y=√x+3-4
y+4=√x+3
on squaring with sides we get
y²+16+8y=x+3
y²+8y+13=x
swapping x And y we get y=x²+8x+13
f inverse x =x²+8x+13
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Is the relation a function?
Answer: yes its just set up diffrently
Step-by-step explanation:
Answer:
ans: yes it is because it matches the same number
S(t)=-16t^(2)+480 represents the height (in feet ) at time f (in seconds) of a quarter being dropped from the top of a building. Find each of the following: A
Given that, the height at time t is represented by: S(t) = -16t² + 480 To find the following: To find the time taken by the object to hit the ground, we need to find the time when the height is zero.
Since the height represents S(t) of the object at time t, we can equate S(t) to 0 and solve for t.-16t² + 480 = 0 By solving the above quadratic equation, we get the following values: t = 15 The negative value can be discarded as we are considering time. Therefore, the object will hit the ground after 15 seconds. To find the height of the object after 1 second, we need to substitute t = 1 in the given expression. S(t) = -16t² + 480
= -16(1)² + 480
= 464 feet
Therefore, the height of the object after 1 second is 464 feet. To find the time at which the height of the object is 304 feet, we need to equate S(t) to 304 and solve for t.-16t² + 480 = 304By solving the above quadratic equation, we get the following values: t = 5 The negative value can be discarded as we are considering time. Therefore, the height of the object is 304 feet after 5 seconds.
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!!CAN SOMEONE CHECK IF IM CORRECT PLEASEEE!!
The amount that the Jones family would pay in the 18th month would be $1,233.45
How to find the amount ?Prior to determining the required payment for the 18th month, it is paramount to calculate the collective minimum payments by the Jones family during the course of seventeen months.
First, find the amount that had been paid in total by the Jones in 17 months to be :
= Monthly payment x minimum monthly payment
= 17 x 25
= $ 425
The balance after 17 months is :
= $ 1 , 658. 45 - $ 425
= $ 1, 233. 45
The remaining balance of $ 1, 233. 45 would have to be paid in the 18th month.
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Crop yield is the ratio of the number of bushels harvested to the number of acres used for the harvest. This year, a large farm harvested rice from 690 acres of farmland. The crop yield was 7,553 bushels per acre. Approximately how many bushels of rice were harvested?.
The amount of rice harvested this year from 690 acres of farmland was 5211570 bushels
What is an equation?An equation is an expression used to show the relationship between two or more numbers and variables.
This year, a large farm harvested rice from 690 acres of farmland. The crop yield was 7,553 bushels per acre.
Hence:
Amount of rice harvested = 7,553 bushels per acre * 690 acres = 5211570 bushels
The amount of rice harvested this year from 690 acres of farmland was 5211570 bushels
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Answer: B
Step-by-step explanation:
if on edg just took the quiz
Help please!! Geometry
Applying angle pair relationships
Answer:
m∠2 = 75°
m∠1 = 105°
Step-by-step explanation:
1. First, we should recognize that the angle that's 75° and ∠2 are alternate interior angles, formed on the interior of the opposite sides of the transversal. Alternate interior angles are congruent, so m∠2 = 75°.
2. Next, ∠2 and ∠1 are a linear pair, meaning their angle measures add up to 180°. Considering that m∠2 is 75 degrees, we just have to subtract 75 from 180, and we get the measure of ∠1.
\(180-75\) \(105\)Therefore, m∠1 = 105°.
Pls find equation of parabola
Answer:
y = - 3x² + 6x + 9
Step-by-step explanation:
given the zeros of a parabola x = a , x = b , then the factors are
(x - a) , (x - b)
here the zeros are x = - 1 and x = 3 , then
factors are (x + 1) and (x - 3)
the equation of the parabola is then the product of the factors, that is
y = a(x + 1)(x - 3) ← a is a multiplier
to find a substitute the point (0, 9 ) into the equation
9 = a(0 + 1)(0 - 3) = a(1)(- 3) = - 3a ( divide both sides by - 3 )
- 3 = a
then equation is
y = - 3(x + 1)(x - 3) ← expand factors using FOIL
= - 3(x² - 2x - 3) ← distribute parenthesis by - 3
y = - 3x² + 6x + 9
What is the value of 2/3 / 5/6
Answer:
4/5
Step-by-step explanation:
Answer:
4/5
Step-by-step explanation:
PLS HELP THIS IS HARD ANYONE PLS
Answer:
it's going to be the first one, (x+7,-y)
Step-by-step explanation:
take one point, A for example and count how far it moved left and right. left is negative, right is positive, do the same for y
Please help!! And show work please! I'll give brainlist..!
what property is illustrated by the equation (5)(3+4)=5(3)+5(4)
Step-by-step explanation:
\((5)(3 + 4) = 5(3) + 5(4) \\ (15 + 20) = (15) + (20) \\ (35) = (35)\)
The probability distribution of the number of pets x per household in a certain locality is given in the following table.
X 0 1. 2. 3 4 P(x) ? 0.28 0.40 0.10 0.07 The expected number of pets in this locality is. Select one: a. 1.25 b. 0
c. 0.74 d. 1.66 e. 2.27
The expected number of pets in this locality is 1.66. Option (d) is the correct answer.
The expected value of a discrete random variable can be computed by summing the product of the value of the random variable with its probability.
That is, Expected value = E(X) = x₁p₁ + x₂p₂ + x₃p₃ + ... + xₙpₙ
where p is the probability of the corresponding value x.
For the given probability distribution of the number of pets x per household, we can compute the expected number of pets in the locality as follows:
E(X) = 0 × ? + 1 × 0.28 + 2 × 0.40 + 3 × 0.10 + 4 × 0.07 = 0 + 0.28 + 0.80 + 0.30 + 0.28 = 1.66
Therefore, the expected number of pets in this locality is 1.66. Option (d) is the correct answer.
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A random sample of 1012 adults in a certain large country was asked "Do you pretty much think televisions are a necessity or a luxury you could do without?" Of the 1012 adults surveyed, 514 indicated that televisions are a luxury they could do without. Complete parts (a) through (e) below.
(a) Obtain a point estimate for the population proportion of adults in the country who believe that televisions are a luxury they could do without.
enter your response here
(Round to three decimal places as needed.)
Part 2
(b) Verify that the requirements for constructing a confidence interval about p are satisfied.
The sample
▼
is stated to be
can be assumed to be
cannot be assumed to be
is stated to not be
a simple random sample, the value of
▼
n
ModifyingAbove p with caret left parenthesis 1 minus ModifyingAbove p with caret right parenthesis
ModifyingAbove p with caret
n ModifyingAbove p with caret
n ModifyingAbove p with caret left parenthesis 1 minus ModifyingAbove p with caret right parenthesis
is
enter your response here, which is
▼
greater than or equal to
less than
10, and the
▼
population proportion
sample proportion
population size
sample size
▼
cannot be assumed to be
can be assumed to be
is stated to not be
is stated to be
less than or equal to 5% of the
▼
population proportion.
sample size.
sample proportion.
population size.
(Round to three decimal places as needed.)
Part 3
(c) Construct and interpret a % confidence interval for the population proportion of adults in the country who believe that televisions are a luxury they could do without. Select the correct choice below and fill in any answer boxes within your choice.
(Type integers or decimals rounded to three decimal places as needed. Use ascending order.)
A.
There is a
enter your response here% probability the proportion of adults in the country who believe that televisions are a luxury they could do without is between
enter your response here and
enter your response here.
B.
We are
enter your response here% confident the proportion of adults in the country who believe that televisions are a luxury they could do without is between
enter your response here and
enter your response here.
Part 4
(d) Is it possible that a supermajority (more than 60%) of adults in the country believe that television is a luxury they could do without? Is it likely?
It is
▼
possible, but not likely
not possible
likely
that a supermajority of adults in the country believe that television is a luxury they could do without because the 95% confidence interval
▼
does not contain
contains
enter your response here.
(Type an integer or a decimal. Do not round.)
Part 5
(e) Use the results of part (c) to construct a % confidence interval for the population proportion of adults in the country who believe that televisions are a necessity.
Lower bound:
enter your response here, Upper bound:
enter your response here
(Round to three decimal places as needed.)
Answer: (a) Obtain a point estimate for the population proportion of adults in the country who believe that televisions are a luxury they could do without.
The point estimate for the population proportion is 514 / 1012 = 0.507.
(b) Verify that the requirements for constructing a confidence interval about p are satisfied.
The sample is stated to be a simple random sample.
The value of n * p = 1012 * 0.507 = 514.7796 is greater than or equal to 10.
The value of n * (1 - p) = 1012 * (1 - 0.507) = 497.2204 is greater than or equal to 10.
The population proportion is less than or equal to 5% of the population size.
Therefore, the requirements for constructing a confidence interval are satisfied.
(c) Construct and interpret a 95% confidence interval for the population proportion of adults in the country who believe that televisions are a luxury they could do without.
The 95% confidence interval for the population proportion is 0.507 +/- 1.96 * sqrt((0.507 * (1 - 0.507)) / 1012) = 0.507 +/- 0.0245 = (0.4825, 0.5315).
We are 95% confident that the proportion of adults in the country who believe that televisions are a luxury they could do without is between 0.4825 and 0.5315.
(d) Is it possible that a supermajority (more than 60%) of adults in the country believe that television is a luxury they could do without? Is it likely?
It is possible that a supermajority of adults in the country believe that television is a luxury they could do without because the 95% confidence interval contains 60%. However, it is not likely because the confidence interval is relatively narrow and the point estimate is far from 60%.
(e) Use the results of part (c) to construct a 95% confidence interval for the population proportion of adults in the country who believe that televisions are a necessity.
The 95% confidence interval for the population proportion of adults who believe that televisions are a necessity is 1 - 0.5315 = 0.4685 to 1 - 0.4825 = 0.5175. Therefore, the 95% confidence interval for the population proportion of adults who believe that televisions are a necessity is (0.4685, 0.5175).
Step-by-step explanation:
How many hours of flight training must be contained in each Part 141 approved commercial pilot certification course for a helicopter rating
The specific number of hours of flight training required for a commercial pilot certification course for a helicopter rating may vary depending on the regulations of the aviation authority in the relevant jurisdiction.
Therefore, a definitive answer cannot be provided without knowing the specific regulations governing the commercial pilot certification course.
Commercial pilot certification courses for a helicopter rating are regulated by aviation authorities such as the Federal Aviation Administration (FAA) in the United States. These authorities establish the minimum requirements and standards for pilot training programs, including the number of hours of flight training.
The FAA's regulations for helicopter pilot certification under Part 141 of the Federal Aviation Regulations (FARs) outline the minimum flight training requirements. However, the specific number of hours required can vary based on factors such as the type of helicopter, the complexity of the training program, and any additional requirements set by the training institution.
To determine the exact number of flight training hours required for a Part 141 approved commercial pilot certification course for a helicopter rating, it is necessary to refer to the regulations of the specific aviation authority and consult the approved training program or contact a reputable flight training institution for accurate and up-to-date information.
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which statement is correct regarding and the parent function ?The domains of g(x) and f(x) are the same, but their ranges are not the same.
The ranges of g(x) and f(x) are the same, but their domains are not the same.
The ranges of g(x) and f(x) are the same, and their domains are also the same.
The domains of g(x) and f(x) are the not the same, and their ranges are also not the same.
The correct statement is: "The domains of g(x) and f(x) are the same, but their ranges are not the same."
The statement "The domains of g(x) and f(x) are not the same, and their ranges are also not the same" is correct. In general, when considering functions g(x) and f(x) derived from a parent function, the transformations applied to the parent function can affect both the domain and the range. The domain of a function refers to the set of all possible input values, while the range represents the set of all possible output values. Through transformations such as shifts, stretches, compressions, or reflections, the domain and range of a function can be altered. Therefore, it is possible for the domains and ranges of g(x) and f(x) to differ from each other and from the parent function.
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How do you find mass using FG?
To find the mass of an object, one can use the formula (Force x Distance) / Gravitational Constant (FG). This formula involves multiplying the force applied to an object by the distance it moves, and then dividing the result by the gravitational constant (FG). The resulting number is the mass of the object in kilograms.
Mass can be found by using the formula (Force x Distance) / Gravitational Constant (FG).
For example, if a force of 10N is applied to an object that is moving 2 meters, the mass of the object can be calculated as follows:
Mass = (10 N x 2 m) / FG
Mass = 20 / 9.8
Mass = 2.04 kg
Finding mass using the force-distance formula (FG) is a simple process. To use it, one needs to know the force applied to an object, the distance it moves, and the gravitational constant (FG). The force and distance values can be measured or calculated depending on the situation. The gravitational constant is a fixed number and is equal to 9.8 m/s2. To calculate the mass, one needs to take the force multiplied by the distance and then divide it by the gravitational constant (FG). The resulting number is the mass of the object in kilograms. This formula is useful for calculating the mass of objects in a variety of situations. It is also useful for verifying the mass of an object that has already been measured.
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guyz plzzz help!!!!!!
Answer:
Step-by-step explanation:
e) as given
a^p=b ------1
Taking power 'q' on both side (1) we get
a^pq=b^q
a^pq= c - - 2 (since b^q=c)
Now taking power 'r' on both side of equation 2
a^pqr=c^r
a^pqr=a (since c^r=a)
So we get
pqr=1 (answer)
A restaurant sells three sizes of shakes. The small, medium and large sizes each cost \$2. 00$2. 00dollar sign, 2, point, 00, \$3. 00$3. 00dollar sign, 3, point, 00, and \$3. 50$3. 50dollar sign, 3, point, 50 respectively. Let xxx represent the restaurant's income on a randomly selected shake purchase. Based on previous data, here's the probability distribution of xxx along with summary statistics:.
The expected income from a randomly selected shake purchase is $2.80.
The probability distribution of the income on a randomly selected shake purchase is as follows:
- For the small size, the cost is $2.00, so the income would also be $2.00.
- For the medium size, the cost is $3.00, so the income would also be $3.00.
- For the large size, the cost is $3.50, so the income would also be $3.50.
Based on the previous data, the probability distribution shows the likelihood of each income amount occurring. To calculate the expected value (mean income), we multiply each income amount by its respective probability and sum them up. In this case, the expected value can be calculated as:
(Probability of small size) * (Income from small size) + (Probability of medium size) * (Income from medium size) + (Probability of large size) * (Income from large size)
Let's say the probabilities of small, medium, and large sizes are 0.3, 0.5, and 0.2 respectively. Plugging in the values:
(0.3 * $2.00) + (0.5 * $3.00) + (0.2 * $3.50)
= $0.60 + $1.50 + $0.70
= $2.80
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a person jogs eight complete laps around a quarter-mile track in a total time of 12.5 min. determine the total distance in meter (1 mile
8 laps time 1/4 mile is 2 miles .
Average speed in miles per hour:
2 mi / 12.5 min * 60 min/hour = 9.6 mph
Average velocity is zero, since velocity is directional and the person jogged around a track. [I mention that in case this was set up as a trick question.]
But if we're really looking for average speed in m/s we can easily convert:
A mile is about 1.6 km, so it's about 1600 m.
(2 mi * 1600 m/mi) / (12.5 min * 60 s/min) = 1800 / 750 = 2.4 m/s
The directional speed of an item in motion, as measured by a specific unit of time and observed from a certain point of reference, is what is referred to as velocity.
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dentify whether this angle is acute, obtuse, right, or straight. (2 points)
an angle that measures about twenty four degrees
a
Acute
b
Obtuse
c
Right
d
Straight
Answer:
(A) Acute Angle
Step-by-step explanation:
An acute angle is any angle less than 90 degrees,
an obtuse angle is any angle more than 90 degrees,
a right angle is exactly 90 degrees,
and a straight angle is 180 degrees.
I hope this helps!
A figure has a perimeter of 48 inches. After it is translated 5 units down and 1 unit left, what is it's perimeter?
The perimeter of a figure has a perimeter of 48 inches. After it is translated 5 units down and 1 unit left is 34 cm.
What is the perimeter?We describe what the perimeter is, how teachers introduce the subject to students in KS2, and the kinds of perimeter word problems students could encounter.
At this point, they would need to understand that a rectangle has two long sides that are exactly the same length and two short sides that are exactly the same length, which is why only two measurements are given above.
They could then work out the perimeter in any of the following ways:
10 + 4 + 10 + 4 OR (10 x 2) + (4 x 2) OR (10 + 4) x 2
The perimeter of a shape is always calculated by adding up the length of each of the sides.
Since it must be the length of the bottom edge (9 cm) less the two top edges, you can determine that the unlabeled little side of the shape is 2 cm long in this instance (4cm and 3cm).
You would then need to sum up all the sides to get the perimeter:
4 + 5 + 9 + 6 + 3 + 3 + 2 + 2 = 34 cm.
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For three consecutive numbers, the sum of the first number, twice the second and 7 less than the third is 133. What are the three numbers?
Answer:
34, 35, 36
Step-by-step explanation:
1st number = x
2nd number = x+1
3rd number = x+2
So the equation would be:
x+2(x+1)+(x+2)-7=133
x+2x+2+x+2-7=133
4x-3=133
4x=136
x=34
Three consecutive numbers justifying the condition given in the statement will be 34, 35, 36.
Algebraic expression from a verbal statement: Define the variables to form an algebraic expression from a verbal statement first. Then form the expression or equation as per given verbal statement.Let three consecutive number are,
n, (n + 1), (n + 2)
First statement given,
" The sum of first number, twice the second number"
Expression for the statement → [n + 2(n + 1)]
Second statement → " 7 less than the third number"
Expression for the statement → (n + 2) - 7
Combine the expressions,
"The sum of first number, twice the second number and 7 less than the third number is 133"
Form the equation and simplify,
n + 2(n + 1) + (n + 2) - 7 = 133
n + 2n + 2 + n + 2 - 7 = 133
(n + 2n + n) + (2 + 2 - 7) = 133
4n - 3 = 144
4n = 136
n = 34
Therefore, the numbers are,
1st number → n = 34
2nd number → (n + 1) = 35
3rd number → (n + 2) = 36
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The drop down is the same for both questions. (15 points!) Please don't do fake answers or you WILL Be reported
Answer:
Step-by-step explanation:
Less and Greater? I don't know what the drop down menus say. Please don't report me. Can you take a pic of drop down menus for me to see?
Suppose phone calls to a certain call center occur according to a Poisson distribution, and the average rate throughout the process equals 4 calls per 15 minutes. Measured in minutes, the time until the next 10 phone calls occur is Gamma (more specifically, Erlang) with what shape and rate parameters
The shape parameter of the Gamma distribution is 10 and the rate parameter is 15/4.
To determine the shape and rate parameters of the Gamma distribution, we need to relate it to the Poisson distribution.
In the Poisson distribution, the average rate (λ) is equal to the shape parameter (k) multiplied by the rate parameter (θ). In this case, the average rate is 4 calls per 15 minutes, so λ = 4/15.
For the Gamma distribution, the shape parameter (k) is equal to the number of phone calls (n), and the rate parameter (θ) is equal to the reciprocal of the average rate (λ). Therefore, k = 10 and θ = 1/λ.
Substituting the value of λ, we have k = 10 and θ = 15/4.
So, the shape parameter of the Gamma distribution is 10 and the rate parameter is 15/4.
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4 candy bars and 6 drinks cost $8.50. Which equation describes this situation if c equals
candy bars and d is drinks?
O4c+d=8.50
O4c+6d=8.50
O8d-8.50*
O6c+4d=8.50
Answer:
04c+06d=$8.50
Step-by-step explanation:
Someone help me please asap I
Answer:
You will make cross multiplication.
So, we will make 5 x 8 =40, then we will divide 40 by 10 which is equal to 4.
Hope it helps:D
The lifespan of all microwave ovens sold in the United States has a mean of 9 years and a standard deviation of 2.5 years. If a particular microwave oven has z-score of -1.5, how many years did it last?
a.) 5.25 years
b.) 7.5
Answer:
7.5 years because United States has mor thne 9 years