The variance of a sample was reported to be 144.The report indicated that $\sum ( x - \bar { x } ) ^ { 2 }$ = 7200.What is the sample size?
A) 49
B) 50
C) 51
D) 52

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The Answer of The variance of a sample was reported to be 144.The report indicated that $\sum ( x - \bar { x } ) ^ { 2 }$ = 7200.What is the sample size?
A) 49
B) 50
C) 51
D) 52

The Variance of a Sample Was Reported to Be 144 ∑(x−xˉ)2\sum ( x - \bar { x } ) ^ { 2 }∑(x−xˉ)2

The Variance of a Sample Was Reported to Be 144 $\sum ( x - \bar { x } ) ^ { 2 }$