Question

b = n(Exy) – (Ex)(Ey) a = (1/n)(Ey – bEx) n(Ex^2) – (Ex)^2 where: b is the slope of the regression line a is the x-intercept of the regression line n is the number of points or ordered pairs Ex is the sum of the x values Ey is the sum of the y values Exy is the sum of the xy products Ex^2 is the sum of the squared x values Slope = b = __________ (4 decimal places)

Name: b nexy exey a 1ney bex nex2 ex2 where b is the slope of the regression line a is the x intercept of the regression line n is the number of points or ordered pairs ex is the sum of the x valu 36028
Uploaded: 2023-09-29T10:09:32-08:00
Duration: 1 min 37 s
Channel: Sri K
Description: b nexy exey a 1ney bex nex2 ex2 where b is the slope of the regression line a is the x intercept of the regression line n is the number of points or ordered pairs ex is the sum of the x valu 36028

          b = n*(Exy) – (Ex)*(Ey) a = (1/n)*(Ey – b*Ex)
n*(Ex^2) – (Ex)^2
where: b is the slope of the regression line
a is the x-intercept of the regression line
n is the number of points or ordered pairs
Ex is the sum of the x values
Ey is the sum of the y values
Exy is the sum of the x*y products
Ex^2 is the sum of the squared x values
Slope = b = __________  (4 decimal places)

Added by Brandi H.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Sri K

09/29/2023

Step 1

Step 1: Compute the necessary sums from the data: - Ex = sum of all x values - Ey = sum of all y values - Exy = sum of the products x*y for all pairs - Ex^2 = sum of the squares of x values - n = number of points Show more…

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b = n*(Exy) – (Ex)*(Ey) a = (1/n)*(Ey – b*Ex) n*(Ex^2) – (Ex)^2 where: b is the slope of the regression line a is the x-intercept of the regression line n is the number of points or ordered pairs Ex is the sum of the x values Ey is the sum of the y values Exy is the sum of the x*y products Ex^2 is the sum of the squared x values Slope = b = __________ (4 decimal places)