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The Standard Deviation of a Sample Was Reported to Be $\sum ( x - \bar { x } ) ^ { 2 }$

Question 32

Multiple Choice

The standard deviation of a sample was reported to be 20.The report indicated that $\sum ( x - \bar { x } ) ^ { 2 }$ = 7200.What is the sample size?

A) 16
B) 17
C) 18
D) 19

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