Question: In a typical evening, a waiter serves four tables that order alcoholic beverages and three that do not. (a) The tip left at a table

In a typical evening, a waiter serves four tables that order alcoholic beverages and three that do not.

(a) The tip left at a table that orders alcoholic beverages is a random variable with mean μ1 = 20 dollars. Find the expected value of the total amount of tips the waiter will receive from the four tables that order alcoholic beverages.

(b) The tip left at a table where no alcoholic beverages are ordered is a random variable with mean μ2 = 10 dollars. Find the expected value of the total amount of tips the waiter will receive from the three tables where no alcoholic beverages are ordered.

(c) Find the expected value of the total amount of tips the waiter will receive in a typical evening.

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