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Binomial Distribution — Maths STD 12 Science — Question

Maharashtra BoardEnglish MediumSTD 12 ScienceMathsBinomial Distribution1 Mark
MCQ
If $X$ is a binomial variate with parameters $n$ and $p$, where $0 < p < 1$ such that $\frac{\text{P(X = r)}}{\text{P(X = n - r})}$ is independent of $n$ and $r,$ then $p$ equals:
  • ✓
    $\frac{1}{2}$
  • B
    $\frac{1}{3}$
  • C
    $\frac{1}{4}$
  • D
    $\text{None of these}$
✓

Answer

Correct option: A.
$\frac{1}{2}$
$\frac{1}{2}$

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