What is the equation of the best-fitting regression line? Find this in two ways. First, using the regression analysis part of the output, and then using the descriptive statistics part of the output.

Step-by-step explanation:

Regression analysis is used to infer about the relationship between two or more variables.

The line of best fit is a straight line representing the regression equation on a scatter plot. The may pass through either some point or all points or none of the points.

Method 1:

Using regression analysis the line of best fit is:

Here α = intercept, β = slope and e = error.

The formula to compute the intercept is:

Here and are mean of the y and x values respectively.

The formula to compute the slope is:

And the formula to compute the error is:

Method 2:

The regression line can be determined using the descriptive statistics mean, standard deviation and correlation.

The equation of the line of best fit is:

Here r = correlation coefficient =

and are standard deviation of x and y respectively.

b. the decimal could be two-tenths.

step-by-step explanation:

answer: slight chance that it will happen

step-by-step explanation: