Mathematics, 30.01.2020 06:59 Neon29

A20$ bill, two 10$ bills, three $5 bills and four $1 bills are placed in a bag. if a bill is chosen at random, what is the expected value for the amount chosen?

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A20$ bill, two 10$ bills, three $5 bills and four $1 bills are placed in a bag. if a bill is chosen...