Question 843006
The total probability is 1.
The presumption is that the probabilities are:
.03 that exactly 0 cars will get pumped.
.18 that exactly 1 car will get pumped.
.24 that exactly 2 cars will get pumped.
.28 that exactly 3 cars will get pumped.
.10 that exactly 4 cars will get pumped.
.17 that exactly 5 or more cars will get pumped.


the probability that more than 2 cars will get pumped is equal to 1 minus the probability that exactly 0 or 1 or 2 cars will get pumped.


that is equal to 1 - (.03 + .18 + .24) which is equal to 1 - .45 which is equal to .55.


the probability is equal to .55 or 55% that more than 2 cars will get pumped.