Question
A sample of n = 25 scores has M = 20 and s2 = 9. What is the sample standard deviation?
a. 3
b. 4.5
c. 9
d. 81
a. 3
b. 4.5
c. 9
d. 81
Answers
Kuai
S^2 = 9
s = 3
Ans a
s = 3
Ans a