Question

Which formula is used to calculate the standard deviation of sample data?

Answer 1

Answer:

s = sqrt [ Σ ( x i - x ) 2 / ( n - 1 ) ]

Step-by-step explanation:

where s is the sample standard deviation, x is the sample mean, x i is the ith element from the sample, and n is the number of elements in the sample. And finally, the standard deviation is equal to the square root of the variance.

Answer 2

Answer:

a

Step-by-step explanation:

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