Question: For a binomial distribution, the mean is given by? A. nq B. npq C. np D. pq In sampling a large number of parts manufactured

For a binomial distribution, the mean is given by?

A. nq B. npq C. np D. pq

In sampling a large number of parts manufactured by a machine, the mean number of defective in a sample of 20, is 2 of 1000. How many will be expected to contain at least 3 defective parts?

A.291

B.300

C.323

D. 376

A lot has 10% defective items. Ten items are chosen randomly. The probability that exactly 2 of the items are defective is:

A. 0.0036

B. 0.1937

C. 0.2234

D. 0.3874

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