Question

In: Statistics and Probability

A random sample of 6IC's is taken from a large consignment and tested in two independent...

A random sample of 6IC's is taken from a large consignment and tested in two independent

stages. The probability that an IC will pass either stage is p.All the 6IC's are tested at the first stage.

If 5 or more pass the test, those which pass are tested at the second stage.The consignment is accepted if

there is at most one failure at each stage.

a) what is the probability that stage two of the test will be required?

b) the number of items expected to enter stage 2

c) the probability of accepting the consignment

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