JEE MATHEMATICS MCQ: STATISTICS

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The mean of 5 observation is 4.4 and their variance is 8.24. If three of the observations are 1, 2 and 6, then difference of the other two observations is

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Correct option: A

Option A (5) is correct because by using the given mean and variance, we can set up equations to solve for the two unknown observations and then find their difference.

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\bar X,

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