Amultiple regression analysis yields the following partial results. source sum of squares df regression 750 4 error 500 35 a. what is the total sample size? b. how many independent variables are being considered? c. compute the coefficient of determination. d. compute the standard error of estimate. e. test the hypothesis that at least one of the regression coefficients is not equal to zero. let α = .05.

answer: 42

use a calculator to find that 845/73 = 11.575

the whole part of the answer is 11. multiply this by 73 to get 11*73 = 803.

subtract that result from 845 to get 845 - 803 = 42

answer: bea's uncle is 25 years old.

step-by-step explanation:

given the equation , we can say that the variable "x" represents the age of bea's uncle. then to find his age, we need to solve for "x":

we must add 15 to both sides of the equation:

now we need to divide both sides of the equation by 3:

therefore, we can conclude that bea's uncle is 25 years old.

maya’s expression will generate the wrong sum because she violated the commutative property.

step-by-step explanation: