For n repeated independent trials, with constant probability of success p for all trials, find the probability of exactly x successes. Round your answer to four decimal places

Question

n = 10, p = 1/7, x = 3

A. 0.1189

B. 0.1546

C. 0.1308

D. 0.1427

Answer 1

Plug the variables in.

For 10 repeated independent trials, with constant probability of success 1/7 for all trials, find the probability of exactly 3 successes. Round your answer to four decimal places

first find probablility of 3 successes,

then find probability of 7 failures.