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JEE MATHEMATICS MCQ: STATISTICS

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The arithmetic mean of a set of observations is

{\bar X}

. If each observation is divided by α and then is increased by 10, then the mean of the new series is

View answer and explanation

Correct option: C

\frac{{\bar X + 10\;\alpha }}{\alpha }

Option C (

\frac{{\bar X + 10\\;\alpha }}{\alpha }

) is correct because each observation is divided by α and increased by 10, so the mean is also affected accordingly.

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