Question

It has been determined that there is a 75% chance of a person using their seatbelt when sitting in the back seat of a car. If a cab company drives 200 customers on a given Friday night, which statement paired with the correct continuity adjustment would be needed to find the probability that at least 160 customers used their seat belt when sitting in the back seat?

Answer 1

the statement that would be paired with the correct continuity adjustment to find the probability that at least 160 customers used their seatbelt when sitting in the back seat is:

P(X >= 160) = (0.75)^159 * (0.25)^41 + (0.75)^161 * (0.25)^40
where X is the number of customers who used their seatbelt.