Q6(a). A machine produces on an average 20% defective bolts. A batch is accepted if a sample of 5 bolts taken from that batch contains no defective and rejected if the sample contains 3 or more defectives. In other cases, a second sample is taken. What is the probability that the second sample is required?

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Q6(a). A machine produces on an average 20% defective bolts. A batch is accepted if a
sample of 5 bolts taken from that batch contains no defective and rejected if the sample
contains 3 or more defectives. In other cases, a second sample is taken. What is the
probability that the second sample is required?
Transcribed Image Text:Q6(a). A machine produces on an average 20% defective bolts. A batch is accepted if a sample of 5 bolts taken from that batch contains no defective and rejected if the sample contains 3 or more defectives. In other cases, a second sample is taken. What is the probability that the second sample is required?
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