Suppose a random variable X follows the binomial distribution with parameters n and p, where 0 < p < 1. If p(x = r) / P(x = n – r) is dindependent of n and r, then p equals
A. \(\frac{1}{2}\)
B. \(\frac{1}{3}\)
C. \(\frac{1}{5}\)
D. \(\frac{1}{7}\)
Answer:A
Suppose a random variable X follows the binomial distribution with parameters n and p, where 0 < p < 1. If p(x = r) / P(x = n – r) is dindependent of n and r, then p equals
A. \(\frac{1}{2}\) B. \(\frac{1}{3}\) C. \(\frac{1}{5}\) D. \(\frac{1}{7}\)