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Two percent of the parts produced by a machine are defective. Twenty parts are selected at random. Use the binomial probability tables to answer the

Two percent of the parts produced by a machine are defective. Twenty parts are selected at random. Use the binomial probability tables to answer the following questions.

a. What is the probability that exactly 3 parts will be defective?

b. What is the probability that the number of defective parts will be more than 2 but fewer than 6?

c. What is the probability that fewer than 4 parts will be defective?

d. What is the expected number of defective parts?

e. What is the variance for the number of defective parts?

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Previous Question Next Question

a.	What is the probability that exactly 3 parts will be defective?
b.	What is the probability that the number of defective parts will be more than 2 but fewer than 6?
c.	What is the probability that fewer than 4 parts will be defective?
d.	What is the expected number of defective parts?
e.	What is the variance for the number of defective parts?