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If the s.d. of a set of observations is 4 and if each
observation is divided by 4, the s.d. of the new set
of observations will be

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answer is D.

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Detailed Solution

$σ_{X} = 4, d = \frac{X - 0}{4}$ since $σ_{X} = | 4 | σ_{d}$

So . $σ_{d} = \frac{4}{4} = 1$ .

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