In a binomial distribution, the sum of its mean and variance is 1.8. Find the probability of two successes, if the event was conducted times.
A. 0.2623
B. 0.2048
C. 0.302
D. 0.305
Answer:B
In a binomial distribution, the sum of its mean and variance is 1.8. Find the probability of two successes, if the event was conducted times.
A. 0.2623 B. 0.2048 C. 0.302 D. 0.305