Six fair coins are tossed. Find the probability of getting exactly 3 heads

Question

Six fair coins are tossed. Find the probability of getting exactly 3 heads

Answer 1

To do this, you need to know about, and to use, Bernoulli trials/Binomial distribution.

 

The answer is ₆C₃•(½)⁶ since both the probabilities p (success, H) and q (failure, T) are the same.