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The number of homes that a Realtor sells over a

The number of homes that a Realtor sells over a one-month period has the following probability distribution.

Number of Houses Sold ... Probability

0 ............ 0.30

1 ............. 0.50

2 .............. 0.15

3 .............. 0.05

a. On average, how many houses is the Realtor expected to sell over a one-month period?

b. What is the standard deviation of this probability distribution?

Number of Houses Sold ... Probability

0 ............ 0.30

1 ............. 0.50

2 .............. 0.15

3 .............. 0.05

a. On average, how many houses is the Realtor expected to sell over a one-month period?

b. What is the standard deviation of this probability distribution?

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