JEE MATHEMATICS MCQ: STATISTICS

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The AM of n observations is M. If the sum of n-4 observations is a, then the mean of remaining 4 observations is

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Correct option: A

\frac{{n\;M - a}}{4}

Option A (

\frac{{n\\;M - a}}{4}

) is correct because it represents the mean of the remaining 4 observations calculated by subtracting the sum of n-4 observations from the total sum and dividing by 4.

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