CSM Forum Banner

Calculation of Standard Deviation from various Data

Discuss PMP doubts, tips and lesson learned. iZenBridge makes PMP® Certification easy
nazrulq
Contributor
Contributor
Posts: 235
Joined: Sun Feb 26, 2017 6:06 am

Calculation of Standard Deviation from various Data

Postby nazrulq Tue Aug 22, 2017 5:43 am

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

Return to “PMP® Open Forum”

Who is online

Users browsing this forum: Bing [Bot] and 9 guests