Which of the following is not a measure of central tendency?

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Mode

Median

Class size

Mean

answer is D.

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Detailed Solution

The central tendency measure is defined as the number used to represent the centre or middle of a set of data values.
Mean is the average or the most common value in a collection of numbers.
Mode is that observation which occurs at the maximum time or has the highest Frequency in the given set of data.
Median is the middle value of the given list of data when arranged in an order.
Thus, the mean or average, median or the central value, and mode represent the measure of central tendency.
Class size gives the difference between the upper limit and lower limit of a particular class of the given data.

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