A fair coin is flipped 9 times. What is the probability of getting exactly 6 heads?

Question

Having difficulty understanding how to answer this question

Answer 1

9C6 tells you how many configurations of 6 heads & 3 tails could be the outcome of 9 flips of a fair coin.

 

This is an example of Binomial Distribution. The probqbility of this specific outcome is 9C6 times 0.5⁹

and this = 84 times 1/2⁹ = 84/512 = 21/126 = 0.1640625

 

For a greater understanding of this topic, Google Bernoulli Trials or Binomial Distribution.