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JEE MATHEMATICS MCQ: STATISTICS

1 Easy

1 of 1

Application +4 | -1

In a series of

2 n

observations, half of them equal

a

and remaining half equal

-a

. If the standard deviation of the ovservations is 2 , then

|a|

equals

View answer and explanation

Correct option: A

2

Option A (2) is correct because the standard deviation of the given series directly leads to the absolute value of 'a' being equal to 2.

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\bar X,

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