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MCQ (Single Correct Answer)

BITSAT 2023
The mean and variance of the data $$4,5,6,6,7,8, x, y$$, where $$x
BITSAT 2022
The mean of five observations is 4 and their variance is 5.2. If three of these observations are 1, 2 and 6, then the other two are
BITSAT 2021
For a random variable X, E(X) = 3 and E(X2) = 11. The variable of X is :
BITSAT 2021
The sum of 10 items is 12 and the sum of their squares is 18, then the standard deviation will be
BITSAT 2021
The runs of two players for 10 innings each are as follows The more consistent player is...
BITSAT 2020
The mean of five observation is 5 and their variance is 9.20. If three of the given five observation are 1, 3 and 8, then a ratio of other two observa...
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