Module 1 - Descriptive Stats Worksheet - Descriptive Statistics Excel Worksheet 1 The formula for the sample mean is M= x n => Answer b 2 The formula

Module 1 - Descriptive Stats Worksheet - Descriptive...

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Descriptive Statistics Excel Worksheet 1) The formula for the sample mean is: M = Σ ( x ) n => Answer b) 2) The formula for the sample variance is: s 2 = SS n 1 ; SS = ( X M ) 2 => Answer e) (none of the above) 3) The formula for the sample standard deviation is: s = ( SS ( n 1 ) ) = s 2 => Answer c) 4) The computational formula for the sample variance is: s 2 = SS n 1 ; X ( ¿ 2 / N ) ¿ X 2 ¿ SS = ¿ => Answer e) (none of the above) 5)For the following sample of scores;X X2 6 36114 162 2 4 163 2 ________ __________X=26X2=94n=9Mean:M=∑ Xn=269=2.89 2 4 4 4 9 4

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