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Yuri [45]
3 years ago
12

Which of the following are true about regression with one predictor variable (often called "simple regression")? A. After conduc

ting a hypothesis test to test that the slope of the regression equation is nonzero, you can conclude that your predictor variable, X, causes Y B. The standardized regression coefficient, beta, has the same value as r, the estimated correlation C. The intercept in the regression equation Y= a + bx is the value of Y when X is zero
Mathematics
1 answer:
jeyben [28]3 years ago
3 0

Answer:

A

Step-by-step explanation:

Simple linear regression is a statistical method that summarizes and study relationships between two continuous quantitative variables.

One variable is regarded as the predictor, explanatory, or independent variable and the other variable is regarded as the response, outcome, or dependent variable.

Two variables can be denoted by X and Y.

Among the given options, the correct option is A. After conducting a hypothesis test to test that the slope of the regression equation is nonzero, you can conclude that your predictor variable, X, causes Y

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f^-1(x)= -x/5 - 4/5

Step-by-step explanation:

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The populations of two cities after t years can be modeled by -150t+50,000 and 50t+75,000 . What is the difference in the popula
creativ13 [48]

Answer:

The difference in the populations of the cities when t=4 is 25,800.

Step-by-step explanation:

Given equations each of the city:

-150t+50,000

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For both equations, substitute 4 into t:

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Now subtract 49,400 from 75,200 and you get 25,800.

The difference in the populations of the cities when t=4 is 25,800.

3 0
2 years ago
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What is the solution to this system of equations?<br><br> 3x-2y=5<br> x+2y=7<br><br> x=_, y=_
Dmitry_Shevchenko [17]

Step 1) Solve the second equation for

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+

3

y

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−

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x

+

3

y

−

3

y

=

−

5

−

3

y

x

+

0

=

−

5

−

3

y

x

=

−

5

−

3

y

Step 2) Substitute

−

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−

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y

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3

(

−

5

−

3

y

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2

y

=

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−

15

−

9

y

−

2

y

=

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−

15

−

11

y

=

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15

−

15

−

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=

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22

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11

y

=

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−

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y

−

11

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22

−

11

−

11

y

−

11

=

−

2

y

=

−

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Step 3) Substitute

−

2

for

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x=−5−(3×−2)

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3 0
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