help me please.....​

A prediction interval provides a wider range to capture future variation compared to a confidence interval.

A confidence interval and a prediction interval have a common objective: to estimate a range of values that likely includes an unknown population parameter.

Both intervals incorporate uncertainty and are used in statistical inference. However, the key difference lies in their interpretations and applications.

A confidence interval provides an estimate for a population parameter (e.g., mean) based on sample data, expressing the level of confidence in the estimated range. It conveys the precision of the estimate but does not directly involve forecasting future observations.

In contrast, a prediction interval is used for forecasting future observations or individual data points.

It estimates a range within which a future observation is expected to fall, taking into account both the uncertainty of the parameter estimate and the inherent variability of individual data points.

Thus, a prediction interval provides a wider range to capture future variation compared to a confidence interval.

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Answer:

-82

Step-by-step explanation:

84/21=4

-25x4=-100

-3x-6=18

-100+18=-82

Answer:

120 m^2

Step-by-step explanation:

6*2=12 for each narrow piece of the rectangular prism and since there are four multiply 12 times 4. Use the equation 6*6=36 for each of the larger sides and multiply 36 by 2 because there are only two large sides.

There is no specific value of "a" that makes the system dependent.

To find the value of "a" that makes the system dependent, we need to ensure that the second equation is a multiple of the first equation.

First, let's rewrite the equations in slope-intercept form:

Equation 1:

y = (1/5)x + 4

Equation 2:

2y - x = a

To make the system dependent, we need the coefficients of "x" and "y" in Equation 2 to be multiples of the corresponding coefficients in Equation 1. In other words, we need to find a value of "a" that satisfies this condition.

Comparing the coefficients, we see that the coefficient of "x" in Equation 2 is -1, while the coefficient in Equation 1 is (1/5). These coefficients are not multiples of each other. Similarly, the coefficient of "y" in Equation 2 is 2, while the coefficient in Equation 1 is 1. Again, these coefficients are not multiples of each other.

Therefore, there is no specific value of "a" that makes the system a dependent system. The system remains independent, and the value of "a" does not affect the dependency of the system.

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The parts of the algebraic expression 3x - 2 are:

3 is the coefficient of x.

x is the variable

2 is the constant term

The algebraic Expression is given as:

3x - 2

Now, some parts of algebraic expressions are coefficients, variables and constant.

Coefficient is defined as the figure or number that is attached to the variable in an algebraic expression.

The variable is the letter that can change because different numbers are used for it.

The constant is the number that stands alone and doesn't change.

Thus, in 3x - 2:

3 is the coefficient of x.

x is the variable

2 is the constant term

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Multiplication operation is the inverse of the one in the given equation which is 9 = p/8.

What is an inverse?

The opposite of another operation is referred to as the "inverse" in mathematics. The operations that cancel out or are the opposite of one another are referred to as inverse operations. The work of a pair is reversed by an inverse operation.

We are given an equation as 9 = p/8.

In this equation,  we can see that the operation used is division.

We know that inverse of division is multiplication.

Hence, multiplication operation is the inverse of the one in the given equation.

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Answer: x=45

Step-by-step explanation: Ok so basically a straight line has to add up to 180, and there’s already a right angle which is 90, so you have to find out what half of 90 is, so the answer is 45. Hope this helps!

Answer:

6-r

7-t

8-m

9-a

Hope this helps plz mark me s brainliest for both questions

Answer: 2< x < 10, closed circle at 2 and 10, line inbetween them

Step-by-step explanation:

Answer:

221 miles

Step-by-step explanation:

1 hour = 60 minutes

52miles/hour = 52miles/60 minutes

then:

52 miles  ⇔  60 minutes  

P  miles  ⇔ 255 minutes

P = 255 * 52 / 60

P =  221 miles

Answer:

6 Apples

Step-by-step explanation:

There would be six apples and 2 oranges left over.

Hope this Helps!

:D

Answer:

I was kind of confused on this one but is it 15 apples?

Step-by-step explanation:

3, 6, 9, 12, 15

4, 8, 12, 16, 20

I think the answer is 15 apples.

The IQR (interquartile range) for the worker's weekly earnings, based on the given stem-and-leaf plot, is 51 dollars.

To calculate the IQR, we need to find the difference between the upper quartile (Q3) and the lower quartile (Q1). Looking at the stem-and-leaf plot, we can determine the values corresponding to these quartiles.

Q1: The first quartile is the median of the lower half of the data. From the stem-and-leaf plot, we find that the 25th data point is 11, and the 26th data point is 12. Therefore, Q1 = (11 + 12) / 2 = 11.5 dollars.

Q3: The third quartile is the median of the upper half of the data. The 66th data point is 18, and the 67th data point is 19. Thus, Q3 = (18 + 19) / 2 = 18.5 dollars.

Finally, we can calculate the IQR as Q3 - Q1: IQR = 18.5 - 11.5 = 7 dollars. Therefore, the IQR for the worker's weekly earnings is 7 dollars, which corresponds to option D.

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When a survey uses the responses strongly disagree, disagree, neutral, agree, strongly agree, this is an example of ordinal data.

Hence option d is the correct answer.

Levels of measurement can tell the preciseness of a variable recorded. (Variable is referred to as the thing that can take different values across a data set.) Based on levels of measurement data can be classified into 4 types, as follows,

Nominal data - Nominal data can only be categorized.

Interval data- Interval data can be categorized, ranked and have even spacing ( between each other).

Ratio data - Ratio data can be categorized, ranked, has even spacing and also has a natural zero.

Ordinal data - Ordinal data can be categorized and ranked.

Here, when a survey uses the responses strongly disagree, disagree, neutral, agree, strongly agree , the data are categorized according to these five categories. And the categories are at superior or inferior level from one another, in other words the data are ranked according to the level of agreement.

Thus, the given is an example of ordinal data.

Hence option d is the correct answer.

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Answer:

Step-by-step explanation:

7 no

113+12x+7+90+90=360

300+12x=2=360

12x=360-300

x=60/12

x=5

9 no

10x-6+109+79+20x-2=360

30x+180=360

30x=360-180

x=180/30

x=6

if they work together it takes 12/7 hours to mow one lawn

What is the arithmetic operation?

The four fundamental operations of arithmetic are addition, subtraction, multiplication, and division of two or more quantities. Included in them is the study of numbers, especially the order of operations, which is important for all other areas of mathematics, including algebra, data management, and geometry. The rules of arithmetic operations are required in order to answer the problem.

jake can mow a lawn in 3 hours.

kellie can mow a lawn in 4 hours.

1/3 lawns can be cut per hour by Jake.

kellie has a 1/4 hour cutting rate for lawns.

They can cut 7/12 lawns per hour by working together at a rate of 1/3 + 1/4.

One lawn can be mowed in 12/7 hours at a rate of 7/12 lawns per hour.

Hence if they work together it takes 12/7 hours to mow one lawn.

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Answer: 4y+4z

Step-by-step explanation:

The object's acceleration can be calculated using the equation of motion. Given that the object starts from rest and reaches a speed of 700 m/s after 2.75 minutes, the acceleration can be determined as 8.72 m/s².

To find the acceleration, we can use the equation of motion:

v = u + at,

where v is the final velocity, u is the initial velocity, a is the acceleration, and t is the time. In this case, the object starts from rest, so the initial velocity u is 0 m/s. The final velocity v is given as 700 m/s, and the time t is 2.75 minutes, which needs to be converted to seconds.

Converting 2.75 minutes to seconds: 2.75 minutes × 60 seconds/minute = 165 seconds.

Now we can substitute the values into the equation:

700 = 0 + a × 165.

Simplifying the equation:

a = 700/165 ≈ 4.24 m/s².

Therefore, the object's acceleration is approximately 4.24 m/s².

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Answer:

56 ok

Step-by-step explanation:

Step-by-step explanation:

kak kak jm ok bro open your eyes men open your eyes men open your eyes men open your eyes men open your eyes men open your eyes men open your eyes men

Answer:

n

Step-by-step explanation:

feeeeer

Answer:

grapgh?????

Step-by-step explanation:

To find the implicit solution for dy/dx = x^2/(1-y^2), we can start by separating the variables and integrating both sides.

dy/(1-y^2) = x^2 dx

To integrate the left-hand side, we can use partial fractions:

dy/(1-y^2) = (1/2) * (1/(1+y) + 1/(1-y)) dy

Integrating both sides, we get:

(1/2) * ln|1+y| - (1/2) * ln|1-y| = (1/3) * x^3 + C

Where C is the constant of integration.

We can simplify this expression by combining the natural logs:

ln|1+y| - ln|1-y| = (2/3) * x^3 + C'

Where C' is a new constant of integration.

Finally, we can use the logarithmic identity ln(a) - ln(b) = ln(a/b) to get the implicit solution:

ln|(1+y)/(1-y)| = (2/3) * x^3 + C''

Where C'' is a final constant of integration.

Therefore, the implicit solution for dy/dx = x^2/(1-y^2) is ln|(1+y)/(1-y)| = (2/3) * x^3 + C''.

Given the differential equation:

dy/dx = x^2 / (1 - y^2)

To find an implicit solution, we can use separation of variables. Rearrange the equation to separate the variables x and y:

(1 - y^2) dy = x^2 dx

Now, integrate both sides with respect to their respective variables:

∫(1 - y^2) dy = ∫x^2 dx

The result of the integrations is:

y - (1/3)y^3 = (1/3)x^3 + C

This is the implicit solution to the given differential equation, where C is the integration constant.

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Answer:

  432 characters

Step-by-step explanation:

There are 36 inches in a yard, so there will be 36 times 12 characters:

  (36 in/yd)(12 char/in) = 432 char/yd

432 characters can be expected per yard of text.

Answer:

6363536

Step-by-step explanation:

becayse

Answer:

99

Step-by-step explanation:

just divide

Answer:

The answer is C

Step-by-step explanation:

Exponential decay is when b is between 0 and 1.

Answer:

C. y = 10(0.13)^x.

Step-by-step explanation:

exponential decay is decreasing from what I remember from Algebra 1 Honors. So therefore, your only answer can be C. y = 10(0.13)^x.

The others all increase because 31, 3.1, 1.03 are all bigger than 1 which means that they increase while .13 decreases.

C. y = 10(0.13)^x.

In a nonexperimental method, relationships between variables are studied by making observations or measures of the variables of interest.

Research without either the manipulation of an independent variable, the random assignment of individuals to conditions or orders of conditions, or both, is referred to as non-experimental research.

The non-experimental study is entirely dependent on variables that the researcher has no control over. By whatever means, they cannot manipulate, control, or change the subjects. Thus, all they can do is continue their research while monitoring and interpreting their subjects.

It is safe to assume that a non-experimental research design is used when there is no specific cause-effect study problem and the researcher simply wants to grasp a topic in depth without constraining it with variables. They examine the natural phenomena as they take place.

Therefore, in a nonexperimental method, relationships between variables are studied by observing or measuring the variables of interest.

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Answer:

-8 and 3, or -3 and 8

Step-by-step explanation:

xy = -24

x - y = 11

x = y + 11

y(y + 11) = -24

y^2 + 11x + 24 = 0

(y + 8)(y + 3) = 0

y = -8 or y = -3

x = 3 or x = 8

the numbers are -8 and 3, or -3 and 8

Answer:

1234567890

Step-by-step explanation:

1234567890

Answer:

30

Step-by-step explanation:

1 * 6 = 6

5 * 6 = 30

6:30

When you reduce it will be back to 1:5