A small grocery store is considering installing an express checkout line. Let X be the number of customers in the regular checkout line. Note that these numbers include the customers being served, if any. The probability distribution of X is given in the table below.

x	0	1	2	3
P(X=x)	0.28	0.22	0.26	0.24

1. On average, how many customers would you expect to see in line? (Decimal points are allowed)

	a.	0
	b.	0.72
	c.	1.24
	d.	1.46