SOLUTION: A large construction firm estimates that 12% of the jobs that it manages are finished within
the constructed time period. It looks at a random sample of 7 jobs that it has managed
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the constructed time period. It looks at a random sample of 7 jobs that it has managed
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Question 1141828: A large construction firm estimates that 12% of the jobs that it manages are finished within
the constructed time period. It looks at a random sample of 7 jobs that it has managed.
(a) What is the probability that at most 2 jobs will be completed within the constructed time
period?
(b) What is the probability that exactly 6 jobs will not be completed within the constructed
time period?
(c) What is the mean number of jobs in 7 that are completed within the constructed time
period?
(d) What is the standard deviation of the number of jobs in 7 that are completed within the
constructed time period?
