1. The discrete random variable X is the number of passengers waiting at a bus stop. The table below shows the probability distribution for X. What is the expected value E(X) for this distribution?

X	0	1	2	3	Total
P(X)	.20	.40	.30	.10	1.00

Expected value E(X) of the number of passengers waiting at the bus stop.

1. The probability that there is at least 1 passenger at the bus stop.
2. The probability that there are less than 2 passengers at the bus stop.

Answer rating: 100% (QA)

Expected value The formula for expected value is Exxpx Hence ... View the full answer