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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?

What percentage of his tables leave no tip?

What is the expected value of a random tip?

The expected value is $

What is the expected value of a random tip?

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