METHODS OF DATA ANALYSIS
MEASURES OF DISPERSION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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If the variance of a data set is 30.25, what is the standard deviation?
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5.5
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15.125
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60.5
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915.0625
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Explanation:
Detailed explanation-1: -Given information The standard deviation is the square root of variance. So if the variance is 25, then the standard deviation will be the square root of 25 i.e. 5.
Detailed explanation-2: -√254=15.9 rounded to the nearest tenth.
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