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Of the cartons produced by a​ company, 3% have a​ puncture, 10% have a smashed corner,...

Of the cartons produced by a​ company, 3% have a​ puncture, 10% have a smashed corner, and 0.7% have both a puncture and a smashed corner. Find the probability that a randomly selected carton has a puncture or a smashed corner.

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