Q44 of 46 Page 278

Fill in the blanks

The sum of the squares of the deviations of the values of the variable is _______ when taken about their arithmetic mean.

minimum

Explanation: The sum of the squares of the deviations of the values of the variable is minimum or least when taken about their arithmetic mean.


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42

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If the variance of a data is 121, then the standard deviation of the data is _______.

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The standard deviation of a data is ___________ of any change in origin, but is _____ on the change of scale.

 45

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The mean deviation of the data is _______ when measured from the median.

 46

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The standard deviation is _______ to the mean deviation taken from the arithmetic mean.