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A store has "scratch and win" cards that show a prize of $0, $1, $2, or $3. The chance of getting these prizes is 80%, 10%, 7% and 3% respectively.

A store has "scratch and win" cards that show a prize of $0, $1, $2, or $3. The chance of getting these prizes is 80%, 10%, 7% and 3% respectively. Find the chance that the store has to pay out more than $20 in prizes for the next 50 customers, assuming the prizes really are random.

52%

26%

74%

48%

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