Calculate the expected revenues for this week.

Matthew runs a small company that delivers medical supplies. Every week the company generates new revenue. The following table contains the past business records:

Revenue $(xi)

Probability p(xi)

$2,000

0.30

$1,500

0.30

$1,000

0.20

$500

0.10

$0

0.10

a. Calculate the expected revenues for this week.

b. Find the standard deviation for the distribution.

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