Asample of n = 9 scores has a variance of s2 = 36. what is the estimated standard error for the sample mean? 1 2 4 16

If 1/2+2/5s=s-3/4,what is the value of s? a. s=3/4 b. s=25/12 c. s=-25/12 d. s=-3/4

What is the difference between the equations of a vertical and a horizontal line?

Ade and abc are similar. which best explains why the slope of the line between points a and d is the same as the slope between points a and b?