A general contracting firm experiences cost overruns on 16% of its contracts. In a company audit, 20 contracts are sampled at random.
a-What is the probability that fewer than three of them experience cost overruns?
b-What is the probability that none of them experience cost overruns?
c-Find the mean number that experience cost overruns. Round the answer to one decimal place?
d-Find the standard deviation of the number that experience cost overruns?
thank you
A general contracting firm experiences cost overruns on 16% of its contracts. In a company audit,...
Of all the errors on computer failures in a certain university, 75% of them is a hardware problem, and the remaining 25% is a software problem. A sample of 13 errors on computers is examined. a. What is the probability that exactly three of them are hardware problems? b. What is the probability that fewer than four of them are software problems? C. What is the probability that none of them are software problems? d. Find the mean number of...
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