The standard deviation of 4- 7- 10- 13- 16- 19- 22 is26816

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Standard X

Mathematics

Standard Deviation about mean

The standard ...

Question

The standard deviation of 4, 7, 10, 13, 16, 19, 22 is

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Solution

The correct option is B 6
$G i v e n o b s e r v a t i o n s a r e i n A . P . H e r e 2 n + 1 = 7 . ∴ n = 3 d = 3 ∴ σ = \sqrt{\frac{3. (4)}{3}} .3 = 6.$

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The standard deviation of 4, 7, 10, 13, 16, 19, 22 is

The correct option is B 6Given observations are inA.P.Here 2n+1=7.∴n=3d=3∴σ=√3.(4)3.3=6.

The correct option is B 6
$G i v e n o b s e r v a t i o n s a r e i n A . P . H e r e 2 n + 1 = 7 . ∴ n = 3 d = 3 ∴ σ = \sqrt{\frac{3. (4)}{3}} .3 = 6.$