Q45 of 46 Page 278

Fill in the blanks

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

least

Explanation: Mean deviation is sum of all deviations of a set of data about the data's mean.


And it is widely believed that the median is” usually” between the mean and the the mode.


So the mean deviation of the data is least when measured from the median


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42

Fill in the blanks

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

 43

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

 44

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.

 46

Fill in the blanks

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