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Finding the Mean from a Probability Distribution Table: Hat Day

APSTAT-KWU4UK

The number of hats a vendor sells before baseball game has the following probability distribution:

number of hats (X) 0 1 2 3 4 5
P(x) 0.05 0.10 0.15 0.28 0.24 0.18



If each hat sells for $\$20$, what is the expected total dollar amount a vendor will make for selling hats before a baseball game?

A

$3.10$

B

$50$

C

$60$

D

$62$

E

$70$