Probability Question 166
Question: If a dice is thrown 7 times, then the probability of obtaining 5 exactly 4 times is
Options:
A) $ ^{7}C_4{{( \frac{1}{6} )}^{4}}{{( \frac{5}{6} )}^{3}} $
B) $ ^{7}C_4{{( \frac{1}{6} )}^{3}}{{( \frac{5}{6} )}^{4}} $
C) $ {{( \frac{1}{6} )}^{4}}{{( \frac{5}{6} )}^{3}} $
D) $ {{( \frac{1}{6} )}^{3}}{{( \frac{5}{6} )}^{4}} $
Show Answer
Answer:
Correct Answer: A
Solution:
Required probability $ ={}^{7}C_4{{( \frac{1}{6} )}^{4}}{{( \frac{5}{6} )}^{3}}. $
BETA
