Number of defective boards in a random sample


When circuit boards used in the manufacture of compact disc players are tested, the long-run percentage of defectives is 5%. Let X = the number of defective boards in a random sample of size n = 25 so X ~ Bin (25, 0.05)

a. Determine P(X<=2)

b. Determine P(X>=5)

c. Determine .P(1<=X<=4)

d. What is the probability that none of the 25 boards is defective?

e. Calculate the expected value and standard deviation of X?

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Basic Statistics: Number of defective boards in a random sample
Reference No:- TGS0715093

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