Question

If the variance of a set of scores is 100, the standard deviation will be:

A. 5
B. 10
C. 25
D. 50
E. 125

Answer 1

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Answer 2

The standard deviation of this set of scores is 10.

Given the following data:

• Variance of a set of scores = 100

To determine the standard deviation of this set of scores:

Standard deviation can be defined as a quantity that is used to determine (measure) how much a set of values differ from the mean value.

Mathematically, standard deviation is given by the formula;

$Standard\;deviation =\sqrt{variance}$

Substituting the given parameters into the formula, we have;

$Standard\;deviation =\sqrt{100}$

Standard deviation = 10.

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