This problem is from the 2002 Luzerne County Math Contest:
Assume a person flips five fair coins. What is the probability of obtaining at least 4 heads?
Is there any way to do this problem without listing all the possibilites? Thanks in advance!
This problem is from the 2002 Luzerne County Math Contest:
Assume a person flips five fair coins. What is the probability of obtaining at least 4 heads?
Is there any way to do this problem without listing all the possibilites? Thanks in advance!
The number of heads in five flips is a binomial random variable , and you are asked to find: