Easy# 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?