If we flipped a coin 10 times, what is the probability that we would get five heads?

Question

If we flipped a coin 10 times, what is the probability that we would get five heads?

Answer 1

Make sure you read these problems carefully. They usually read ....exactly 5 heads at least 5 heads, or at most 5 heads. Iassume you mean exactly 5 heads.

 

This is a standard binomial theorem applied to probability.Your answer is found by evaluating 

 

10 C 5 *(1/2)^5 * (1/2)^5

 

You had to pick 5 heads which means you were left with 5 more tosses which had to come out tails.

 

Hope this helped