What is the probability a customer will win a prize

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In a game run by a store, each customer is given a card with 16 squares. The customer is allowed to scratch exactly three squares to reveal whether a square is marked "winner" or "sorry". Threesquares with "winner" on them wins a prize. Suppose seven squares are marked "winner" and nineare marked "sorry". What is the probability a customer will win a prize?

Reference no: EM132851984

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