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A waiter estimates that he makes a tip of $5 on 20% of his tables, $8 on 50% of his tables, and $14 on 25%

A waiter estimates that he makes a tip of $5 on 20% of his tables, $8 on 50% of his tables, and $14 on 25% of his tables. a) What percentage of his tables leave no tip? a b) What is the expected value of a random tip? The expected value is SE n

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