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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All of the below sets have the same mean.Set 1-Standard Deviation=3.1Set 2-Standard Deviation=4.9Set 3-Standard Deviation=1.7Set 4-Standard Deviation=3.2Which set of data has points closest to the mean on average (the least average spread)?
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1
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2
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3
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4
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Explanation:
Detailed explanation-1: -Detailed Solution. ∴ The value of variance is 16.
Detailed explanation-2: -Consider “two normally distributed variables with same mean and standard deviation have the same distribution. The mean and standard deviation determine the normally distributed. So, two normally distributed variables with same mean and standard deviation have the same shape. Hence, the given statement is true.
There is 1 question to complete.