The number of homes sold by a realtor during a month has the following probability distribution: number sold probability 0 0.

The number of homes sold by a realtor during a month has the following probability distribution:

number sold           probability

0                               0.20

1                               0.40

2                               0.40

What is the expected number of homes sold by the realtor during a month?

a. 1

b. 1.2

c.1.5

d.2