Asked by Lyn
                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
                    Answered by
            Kuai
            
    S^2 = 9 
s = 3
Ans a
    
s = 3
Ans a
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