Question: Given this data set (12, 9, 15, 13 and 11) with a mean of 12.00, find the following: (a) N, (b) (X M),

Given this data set (12, 9, 15, 13 and 11) with a mean of 12.00, find the following: 

(a) N,

(b) Σ (X − M),

(c) Σ (X − M)2.

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