JEE Main 4 Apr 2024 Shift 2 Solved Paper

Section: Mathematics
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Question : 15 of 90
 
Marks: +1, -0
If the mean of the following probability distribution of a random variable X;
 X  0  2  4  6  8
 P(X)  a  2a  a+b  2b  3b

is ‌
46
9
, then the variance of the distribution is
[4 Apr 2024 Shift 2]
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