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Calculate the probability of no more than 25 switches

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Reference no: EM131941705

A quality engineer inspects an SRS of 225 switches from a large shipment of which 15% fail to meet specifications. Let X be the count of switches in the sample that fail to meet expectations. Assume that X has a B(225, 0.15) distribution.

Apply the normal approximation to calculate the probability of no more than 25 switches that fail to meet expectations

Reference no: EM131941705

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