A person tosses a coin 6
times. In how many ways can he get 4
heads?
The number of ways to get 4 heads out of 6 coin tosses can be calculated using the binomial coefficient formula:
nCr = n! / (r! * (n-r)!)
where n is the total number of coin tosses (6) and r is the number of heads we want to get (4).
6C4 = 6! / (4! * (6-4)!)
6C4 = 720 / (24 * 2)
6C4 = 720 / 48
6C4 = 15
Therefore, there are 15 ways for a person to get 4 heads out of 6 coin tosses.