JEE Main 4 Apr 2024 Shift 2 Solved Paper
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Question : 15 of 90
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If the mean of the following probability distribution of a random variable X ;
is
, then the variance of the distribution is
| X | 0 | 2 | 4 | 6 | 8 |
| P(X) | a | 2a | a+b | 2b | 3b |
is
[4 Apr 2024 Shift 2]
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