Question
Suppose $X-B(n, p)$ and $P(X=3)=P(X=5) .$ If $p>$ $1 / 2$, then(a) $n \leq 7$(b) $n>8$(c) $n \geq 9$(d) $n \geq 10$
Step 1
We can write this as: \[ {n \choose 3}p^3(1-p)^{n-3} = {n \choose 5}p^5(1-p)^{n-5} \] Show more…
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