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binomial distribution
the mean and variance of ...
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The mean and variance of a binomial distribution are 8 and 4 respectively. What is \( P(X=1) \)?
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Always derive \( p, q, n \) first before applying binomial probability formula.
KEAM - 2018
KEAM
Updated On:
May 1, 2026
\( \frac{1}{2^8} \)
\( \frac{1}{2^{12}} \)
\( \frac{1}{2^6} \)
\( \frac{1}{2^4} \)
\( \frac{1}{2^5} \)
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