1.A random variable XXX follows the binomial distribution and X∼B(n,0.3)X \sim B(n, 0.3)X∼B(n,0.3). If the mean of XXX is three times as large as the standard deviation of XXX, then n=n =n=a.9b.21c.27d.3Login to continueOnly logged in users canattempt or see the solution.
