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Calculation of Standard Deviation from various Data

Posted: Tue Aug 22, 2017 5:43 am
by nazrulq
Following data points are used 5, 6, 7,8,9, 10. from that point calculate STD ( Standard Deviation)

Mean = 5 + 6 + 7+8 +9 + 10 = 45/ 6 =7.5

Variance = (7.5-5) ² + ( 7.5-6)² +(7.5-7)²+ (7.5-8)²+ (7.5-9)²+(7.5-10)² = 17.5

Std = Sqrt (Var)= Sqrt (Variances) = 4.18