In: Statistics and Probability
The probability of buying a movie ticket with a popcorn coupon is 0.597 and without a popcorn coupon is 0.403. If you buy 18 movie tickets, we want to know the probability that no more than 13 of the tickets have popcorn coupons.
P(Popcorn) =0.597
This is a binomial distribution question with
n = 18
p = 0.597
q = 1 - p = 0.403
where