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JEE MATHEMATICS MCQ: STATISTICS

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Application +4 | -1

If the mean of the data :

7,8,9,7,8,7, \lambda, 8

is 8 , then the variance of this data is

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Correct option: D

1

Option D (1) is correct. First, find the value of lambda using the mean. Then, calculate the variance using the formula.

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