If smith checks 300 of the 7500 welds completed that shift, Ask an Expert

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Smith is a weld inspector at a shipyard. He knows from keeping track of good and substantial welds that for the afternoon shift 5% of all welds will be substandard. If Smith checks 300 of the 7500 welds completed that shift, what is the probability that he will find fewer than 20 substandard welds?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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