Fifteen castings of a certain type are produced per day in


Fifteen castings of a certain type are produced per day in a foundry. The finished castings are inspected and classified as defective or non-defective. Records indicate that of the last 500 castings inspected, 16 were defective. Based on this information, find the following:

(a) The probability of having at no defective castings in a day's production

(b) The probability of having at least two defective castings in a day's production

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Electrical Engineering: Fifteen castings of a certain type are produced per day in
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