My Math Forum Is it normal if deviation is greater than variance?

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 December 10th, 2016, 06:41 AM #1 Newbie   Joined: Dec 2016 From: HK Posts: 8 Thanks: 0 Is it normal if deviation is greater than variance? Here is my problem, a sample of 7.55, 6.13, 5.44, 7.19, 6.33 My answer is mean = 6.528 sample variance = 0.716 and deviation = 0.846 but i was told that variance is always greater than deviation, so i am confused now.
 December 10th, 2016, 09:00 AM #2 Senior Member     Joined: Sep 2015 From: USA Posts: 2,427 Thanks: 1314 variance is the square of deviation $\sigma < 1 \Rightarrow \sigma > \sigma^2$ $\sigma > 1 \Rightarrow \sigma^2 > \sigma$ Thanks from hkg277340

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