The graph shows the best-fit regression model for a set of data comparing the number of hours spent hiking and the number of miles traveled in one day.
A) Each point in the data set falls on the regression line.
B) The regression model is an accurate representation of the distance for any number of hours hiked.
C) Each point in the data set is near the regression line.
D) The regression model is inaccurate, as it does not begin at (0, 0).
Answers
Answer:
d)
Step-by-step explanation:
it does not begin at 0,0
it is beginning at the 1
Each point in the data set is near the regression line.
Option C is the correct answer.
What is regression?Regression is a statistical method used to analyze the relationship between two or more variables.
It helps to identify and quantify the relationship between the dependent variable (also called the response variable) and one or more independent variables (also called the explanatory variables or predictors).
We have,
Each point in the data set is near the regression line.
This is because the regression line is the line of best fit that minimizes the distance between the line and the actual data points.
While not all points will fall exactly on the line, the fact that they are all relatively close to the line indicates that the line is a good fit for the data.
Option A is not necessarily true for all data sets, and option B is an overgeneralization.
Option D is not necessarily a problem, as a regression line does not always have to pass through the origin.
Thus,
Each point in the data set is near the regression line.
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Related Questions
Suppose the critical region for a certain test of the null hypothesis is of the form f > 9.487 and the computed value of f from the data is 1.86. then?
Answers
Since the computed value of f from the data (1.86) is not greater than the critical value of 9.487, we fail to reject the null hypothesis. There is not enough evidence to support the alternative hypothesis.
In hypothesis testing, the critical region represents the range of values that would lead to the rejection of the null hypothesis. In this case, the critical region is defined as f > 9.487.
To perform the test, we compare the computed value of f from the data (1.86) with the critical value. Since 1.86 is not greater than 9.487, it falls outside the critical region.
When the computed value of the test statistic falls outside the critical region, we fail to reject the null hypothesis. This means that the data does not provide enough evidence to support the alternative hypothesis. In other words, there is not sufficient evidence to conclude that the observed effect is statistically significant.
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high-low or least squares regression analysis should only be done it a(n) ____ plot depicts linear cost behavior.
Answers
High-low or least squares regression analysis should only be done if a scatter plot depicts linear cost behavior.
A scatter plot is a graphical representation of data points, with the x-axis representing the independent variable (such as the level of production) and the y-axis representing the dependent variable (such as the cost). Linear cost behavior means that the relationship between the independent and dependent variables can be approximated by a straight line. In other words, as the independent variable increases or decreases, the dependent variable changes proportionally.
To determine if a scatter plot depicts linear cost behavior, you need to visually examine the data points. If the points appear to align closely along a straight line, it indicates a linear relationship. However, if the points are scattered and do not follow a clear pattern, it suggests non-linear cost behavior.
High-low or least squares regression analysis are statistical techniques used to estimate and quantify the linear relationship between variables. These methods help determine the equation of the line that best fits the data points and can be used to predict future values. Therefore, performing these analyses is only meaningful when the scatter plot indicates linear cost behavior.
In summary, high-low or least squares regression analysis should only be done if a scatter plot depicts linear cost behavior.
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Part C Rewrite the expression from Part B to get the variable b alone on one side of the equation. (This is also called isolating b.)
Answers
Answer:
b=n+2
Step-by-step explanation:
I just know this answer
Have a good day/night UωU
Simplify the expression (6^2)4.
Answers
Answer:
6⁸ = 1679616
Step-by-step explanation:
You want to simplify the expression (6²)⁴.
Rules of exponentsThe applicable rule of exponents is ...
(a^b)^c = a^(bc)
Here, this means ...
\((6^2)^4=6^{2\times4}=\boxed{6^8=1679616}\)
__
Additional comment
Your calculator is good at evaluating numerical expressions.
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Jasmine purchased 3 bags of hot cheetos and 2 packs of sour patch kids from the vending machine and spent 5.25. Michael also loaded up on snacks for the week and purchased 7 bags of hot Cheetos and 3 packs of sour patch kids for 9.75. Which is the cost of a bag of hot Cheetos and a pack of sour patch kids?
Answers
Answer:
cost of a bag of hot Cheetos = 0.75 and cost of a pack of sour patch kids = 1.5
Step-by-step explanation:
Let the cost of a bag of hot cheetos be c
Let the cost of a pack of sour patch kids be k
Thus, for Jasmine, the equation will be;
3c + 2k = 5.25 - - - - (eq1)
For Michael, the equation will be;
7c + 3k = 9.75 - - - - - (eq2)
We will use method of elimination to solve this.
Multiply (eq 1) by 3 and (eq 2) by 2 to give;
9c + 6k = 15.75 - - (eq4)
14c + 6k = 19.5 - - -(eq5)
Subtract (eq4) from (eq 5) to get;
5c = 19.5 - 15.75
5c = 3.75
c = 3.75/5
c = 0.75
Put 0.75 for c in (eq 4) to get;
9(0.75) + 6k = 15.75
6.75 + 6k = 15.75
6k = 15.75 - 6.75
6k = 9
k = 9/6
k = 1.5
Thus; cost of a bag of hot Cheetos = 0.75 and cost of a pack of sour patch kids = 1.5
Is the term 6 a constant?
no
yes
Answers
Answer:
Yes a number by itself is considered a constant.
Answer:
Yes because it comes before a variable
Step-by-step explanation:
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at a restaurant 60% of customers typically order a salad with their meal. what is the experimental probability the next 4 customers wil order a salad
Answers
The experimental probability the next 4 customers will order a salad is 12.96%
The experimental probability of the next 4 customers ordering a salad can be calculated by multiplying the individual probabilities of each customer ordering a salad.
Given that 60% of customers typically order a salad, the probability of a customer ordering a salad is 0.6, or 60% expressed as a decimal.
To find the probability of all 4 customers ordering a salad, we multiply the probabilities together:
P(4 customers ordering a salad) = 0.6 * 0.6 * 0.6 * 0.6 = 0.6^4 = 0.1296
Therefore, the experimental probability of the next 4 customers ordering a salad is 0.1296, or 12.96% expressed as a percentage.
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Which of the following options have the same value as 70% of 80?Choose 3 answers:A 70/100:80B 0.7:0.8C 0.7:80D 70:80E 7/10:80
Answers
First, let's calculate 70% of 80 using a rule of three:
Thereby,
\(\begin{gathered} x=\frac{80\cdot70}{100}\rightarrow x=56 \\ \\ x=0.7\colon80 \\ x=\frac{70}{100}\colon80 \\ x=\frac{7}{10}\colon80 \end{gathered}\)Correct answers are:
Option A
Option C
Option E
Find (x + 7x2 - 167–112) /
(x+4) by using synthetic division:
Answers
Answer:
x² + 3x - 28
Step-by-step explanation:
Division of the polynomial by (x + 4), evaluate at h = - 4
- 4 | 1 7 - 16 - 112
- 4 - 12 112
--------------------------------
1 3 - 28 0 ← remainder = 0
quotient is x² + 3x - 28
wich equation is true 9x8=8x9 4x8=(2x4)+(2x4)6x5=(6x1)+(5x1)7x6=6+7
Answers
Answer:9x8=8x9
Step-by-step explanation:
Beacause if you multiply it is the same forwards and backwards
Answer:
9x8=8x9
by-step explanation:
if -5,3 and 5,3 are two vertices of an equilateral triangle, then find the coordinates of the third vertex, given that orgin lies inside the triangle (Take √3 = 1.7)
Answers
Therefore, The Coordinates of the THIRD VERTEX is: ( 5, -3 )
Step-by-step explanation:Calculate the midpoint of the given vertices:
MidPoint = ( -5 + 5/2, 3 + 3/2 )
MidPoint = ( 0, 3 )
Calculate the distance between the given vertices:Distance = √( -5 -5 )^2 + ( 3 - 3 )^2
Distance = √( -10 )^2 + (0)^2
Distance = √100
Distance = 10
Calculate the side length of the equilateral triangle:Side Length = 10/√3
Side Length = 10/1.7
Side Length = 5.88
Calculate the height of the Third Vertex:Height = √3/2 * Side Length
Height = 1.7/2 * 5.88
Height = 5
Calculate the Coordinates of the Third Vertex:Since the origin lies inside the triangle, The Third Vertex will have a Positive X-Coordinate and a Negative Y-Coordinate.
Now, Let the Third Vertex Be:( x, y )
Using the MidPoint Formula now we have:x = -5 + x/2
y = 3 + y/2
Solve for X and Y, we now get:x = 5
y = -3
Draw a conclusion:Hence, The Coordinate of the Third Vertex is: ( 5, -3 )
I hope this helps!
identify the type i error and the type ii error that correspond to the given hypothesis. the percentage of households with more than1 pet is less than 65%.
Answers
Type I error would be that we conclude to reject the null hypothesis that the percentage of households with more than 1 pet is equal to 65 % when that percentage is actually equal to 65%.
Type II error would be that we fail to reject the null hypothesis that the percentage of households with more than 1 pet is equal to 65 % when that percentage is actually different from 65%.
We are given that the percentage of households with more than 1 pet is 65%.
Let p = population % of households with more than 1 pet
So, Null Hypothesis, : p = 65% {means that the percentage of households with more than 1 pet is equal to 65 %}
Alternate Hypothesis, : p 65% {means that the percentage of households with more than 1 pet is different from 65 %}
Type I error states that the null hypothesis is rejected given the fact that null hypothesis was true. Or in other words, it is the probability of rejecting a true hypothesis.
So, in our case, type I error would be that we conculde to reject the null hypothesis that the percentage of households with more than 1 pet is equal to 65 % when that percentage is actually equal to 65%.
Type II error states that the null hypothesis is accepted given the fact that null hypothesis was false. Or in other words, it is the probability of accepting a false hypothesis.
So, in our case, type II error would be that we fail to reject the null hypothesis that the percentage of households with more than 1 pet is equal to 65 % when that percentage is actually different from 65%.
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Can someone help me please
Answers
Answer: it should be x
Step by step explanation: the x table changes at a rate of 6 when the y table changes at a rate of 4
The radius of a circle is 9 millimeters. What is the circle's circumference?
Use 3.14 for л.
Answers
Answer:
56.55
Step-by-step explanation:
C=2πr=2·π·9≈56.54867
5. Prolific uses the bike in his trunk to find a nearby gas station with a mechanic to fix his rental
car. He rides 1.5 mi to the first gas station, where they say the next gas station may have a
mechanic. He then rides 1.6 mi to the next gas station, which also has no mechanic. The
following gas stations at 1.8 mi, 2.1 mi, and 2.5 mi away all have no mechanics available, but
confirm that there is a mechanic at the following gas station.
A. Assuming the rate remains constant, what equation will determine the distance of
the N gas station?
B.
If the pattern continues, how many miles will Prolific bike to get to the mechanic at
the 6th gas station?
Answers
Prolific will bike 2 miles to get to the mechanic at the 6th gas station if the pattern continues.
Assuming the rate remains constant, we can use the equation d = rt, where d is the distance, r is the rate, and t is the time. In this case, we want to find the equation to determine the distance of the Nth gas station.
Let's analyze the given information:
The first gas station is 1.5 miles away.
From the second gas station onwards, each gas station is located at a distance 0.1 miles greater than the previous one.
Based on this pattern, we can write the equation for the distance of the Nth gas station as follows:
d = 1.5 + 0.1(N - 1)
B. To find the distance Prolific will bike to get to the 6th gas station, we can substitute N = 6 into the equation from part A:
d = 1.5 + 0.1(6 - 1)
= 1.5 + 0.1(5)
= 1.5 + 0.5
= 2 miles
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Rectangle A has side lengths measuring 4 inches and 9 inches. Rectangle B is similar to rectangle A but has side lengths three times longer
than rectangle A.
What is the area of rectangle B?
O A. 12 square inches
OB. 36 square inches
O c. 78 square inches
O D. 108 square inches
O E. 324 square inches
Answers
- you take both 4 and 9, multiply them by 3 which would give you 12 and 27. then you add 27 twice and 12 twice, together and get 78.
The question is in the image below!
Answers
Answer:
4
Step-by-step explanation:
16x - 4y = 20
-4y = -16x + 20
y = 4x - 5
Find the length of a picture frame whose width is 3 inches and whose proportions
are the same as a 9-inch wide by 12-inch long picture frame.
6 inches
Answers
Answer:
correct answer is 9 inches
Step-by-step explanation:
Antwan earned $9 for 1/2 of an hour of babysitting. At this rate, how much would Antwan make in 1 hour?
Answers
Answer:
$18
Step-by-step explanation:
double the value of 9 to get 18
At the carnival, Marsha bought 10 ride tickets and 3 snacks. Each ride ticket costs $1.50 less than a snack. Marshaspent a total of $24.00. Write and solve an equation to find the cost of each snack?
Answers
Answer:
$3
Explanation:
• Let the cost of a snack = x
Each ride ticket costs $1.50 less than a snack, therefore:
• The cost of a ride ticket = $(x - 1.50)
\(\begin{gathered} \text{Cost of 3 snacks=}3\times x=3x \\ \text{Cost of 10 ride tickets}=10\mleft(x-1.50\mright) \end{gathered}\)Since Marsha spent a total of $24.00, we have:
\(3x+10(x-1.50)=24\)We then solve for x.
\(\begin{gathered} 3x+10x-15=24 \\ 13x=24+15 \\ 13x=39 \\ x=\frac{39}{13} \\ x=\$3 \end{gathered}\)The cost of each snack is $3.
Jasper is an airline attendant. Last week, he worked on flights on 2 small jets and 5 large jets, which could seat a total of 531 passengers. The week before, he was assigned to flights on 5 small jets and 5 large jets, which could seat a total of 720 passengers. How many seats were on each type of flight?
Answers
The number of seats available in the small jets and large jet are 63 and 81 respectively.
What is a system of equations?A set of simultaneous equations, also known as a system of equations or an equation system, is a finite set of equations for which common solutions are sought.
Given that, Jasper noticed with 2 small jets and 5 large jets, which could seat a total of 531 passengers and 5 small jets and 5 large jets, which could seat a total of 720 passengers.
Let the number of seats available in the small jets and large jet be x and y,
Establishing the system of equations to solve,
2x+5y = 531......(i)
5x+5y = 720.......(ii)
Subtracting the equation (i) from eq(ii)
3x = 189
x = 63
Put x = 63
5(63)+5y = 720
5y = 405
y = 81
Hence, the number of seats available in the small jets and large jet are 63 and 81 respectively.
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Which two transformations must be applied to the graph of y = ln(x) to result in the graph of y = –ln(x) + 64?
A) reflection over the x-axis, plus a vertical translation
B) reflection over the y-axis, plus a vertical translation
C) reflection over the x-axis, plus a horizontal translation
D) reflection over the y-axis, plus a horizontal translation
Answers
Answer: A) reflection over the x-axis, plus a vertical translation
Step-by-step explanation:
Ok, when we have a function y = f(x)
> A reflection over the x-axis changes a point (x, y) to a point (x, -y), then for a function (x , y = f(x)) the point will change to (x, -y =- f(x))
then for a funtion g(x), this tranformation can be written as h(x) = -g(x).
> A vertical translation of A units (A positive) up for a function g(x) can be written as: h(x) = g(x) + A.
Then in this case we have:
y = g(x) = ln(x)
and the transformed function is h(x) = -ln(x) + 64
Then we can start with h(x) = g(x)
first do a reflection over the x-axis, and now we have:
h(x) = -g(x) = -ln(x)
And now we can do a vertical translation of 64 units up
h(x) = -g(x) + 64 = -ln(x) + 64
Then the correct option is:
A) reflection over the x-axis, plus a vertical translation
Answer:
A
Step-by-step explanation:
edge
30 pts pls awnser all questions i give BRAINLIEST help meee
Answers
Answer:
Step-by-step explanation:
It is non-linear. A linear function can be written in the form y = mx + b
What does the variable "a" stand for in exponential functions represented by the equation y = a(b)x *
1.Starting amount
2.base
3.rate
4.multiplier
Answers
Answer:
Starting amount is the answer
An independent basic service set (IBSS) consists of how many access points?
Answers
An independent basic service set (IBSS) does not consist of any access points.
In an IBSS, devices such as laptops or smartphones connect with each other on a peer-to-peer basis, forming a temporary network. This type of network can be useful in situations where there is no existing infrastructure or when devices need to communicate with each other directly.
Since an IBSS does not involve any access points, it is not limited by the number of access points. Instead, the number of devices that can be part of an IBSS depends on the capabilities of the devices themselves and the network protocols being used.
To summarize, an IBSS does not consist of any access points. Instead, it is a network configuration where wireless devices communicate directly with each other. The number of devices that can be part of an IBSS depends on the capabilities of the devices and the network protocols being used.
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Daily high temperatures in St. Louis for the last week were as follows: 92, 92, 93, 95, 95, 86, 95 (yesterday). a) The high temperature for today using a 3-day moving average =____ degrees (round your response to one decimal place).
Answers
The high temperature for today using a 3-day moving average is 92 degrees.
To calculate the high temperature for today using a 3-day moving average, we take the average of the temperatures from the past three days, including today.
Given the daily high temperatures in St. Louis for the last week:
92, 92, 93, 95, 95, 86, 95 (yesterday)
To find the 3-day moving average for today's high temperature, we consider the temperatures from yesterday, the day before yesterday, and three days ago.
(95 + 86 + 95) / 3 = 92
Therefore, the high temperature for today, calculated using a 3-day moving average, is approximately 92 degrees Fahrenheit, rounded to one decimal place.
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The equation P 5 0.00267sF gives the power P (in horsepower) needed to keep a certain bicycle moving at speed s (in miles per hour), where F is the force (in pounds) of road and air resistance. On level ground, the equation F 5 0.0116s 2 1 0.789 models the force F. Write a model (in terms of s only) for the power needed to keep the bicycle moving at speed s on level ground. How much power is needed to keep the bicycle moving at 10 miles per hour?
Answers
a(n) select is a basic statistical tool that graphically shows the frequency or number of observations of a particular value or within a specified group.
Answers
A histogram is a basic statistical tool that graphically shows the frequency or number of observations of a particular value or within a specified group.
A histogram is a chart that displays data by dividing it into intervals, or "bins," and then counting how many data points fall into each bin. The x-axis of a histogram represents the range of values being analyzed, while the y-axis represents the frequency or count of values that fall within each bin.
Histograms are commonly used to illustrate the distribution of data. They provide a visual representation of the central tendency, variability, and shape of the data. In particular, histograms can reveal patterns in the data such as skewness, outliers, or gaps.
Histograms are frequently used in data analysis across many fields, including finance, biology, psychology, and engineering. They can be created using software programs such as Microsoft Excel, R, Python, or MATLAB.
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The given question is incomplete, the complete question is:
A(n)______ is a basic statistical tool that graphically shows the frequency or number of observations of a particular value or within a specified group
olve for x. 4x – 34 = 8x + 6 *
Solve for x. 4(-x + 1) + 4 = 6x + 10 *
How many solutions does this equation have? 2x + 7 = 4x - 10 *
No solutions
Infinitely many solutions
One solution
How many solutions does this equation have? -3x + 12 = 12 - 3x *
No solutions
Infinitely many solutions
One solution
How many solutions does this equation have? 5x + 10 = 5x - 23 *
No solutions
Infinitely many solutions
One solution
Answers
Answer:
no sloution
Step-by-step explanation:
Rearrange to make x the subject
4(x-3) =y
pls help