The S.D of 15 items is 6 and if each item is decreased or i…

Maths Statistics ( Measures of Central Tendency and Dispersion ) Measures of Dispersion Single Correct MCQ

Published on: August 13, 2026

The S.D of 15 items is 6 and if each item is decreased or increased by 1, then standard deviation will be

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The correct answer is:

If each item of a data is increased or decreased by the same constant, the standard deviation of the data remains unchanged.

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