Step-by-step explanation:
A. summation of (x-x)² = 4 (also variance)
√4 = 2 (standard deviation)
B. N =50
summation of fxm =1,730
summation of fx²m=61,830 ( also variance )
√61,830 =248.66 (standard deviation)
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Step-by-step explanation:
A. summation of (x-x)² = 4 (also variance)
√4 = 2 (standard deviation)
B. N =50
summation of fxm =1,730
summation of fx²m=61,830 ( also variance )
√61,830 =248.66 (standard deviation)