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If X ~ B (n,p) with n=10 , p = 0.4...

If ` X ~ B (n,p) ` with `n=10 , p = 0.4 ` the ` E (X^(2 ))=?`

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The correct Answer is:
n =20, p = 0.3
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NAVNEET PUBLICATION - MAHARASHTRA BOARD-QUESTION BANK 2021-BINOMIAL DISTRIBUTION
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