Find probability that exactly three boys will be selected
There are 15 boys and 30 girls in class and 10 are to be randomly selected for special project. What's the probability that exactly 3 boys will be selected?
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During April, Kaye Company accumulated 400 hours of direct labor costs on Job 50 and 600 hours on Job 51. The total direct labor was incurred at a rate of $16 per direct labor hour for Job 50 and $14 per direct labor hour for Job 51.
The acceptance scheme for purchasing lots containing a large number of batteries is to test no more than 75 randomly selected batteries and to reject a lot if a single battery fails. Suppose the probability of a failure is 0.001.
Compute the probability that more than 10 customers will arrive in a 2-hour period. What is the mean number of arrivals during a 2-hour period?
During June, raw materials purchased on account were $5,767, and all wages were paid. Additional overhead costs consisted of depreciation on equipment $824 and miscellaneous costs of $471.
Andre Preneur supervises two consulting jobs in the consulting firm of Dewey, Cheatham, and Howe, which does studies on environmental cleanup. One of the consulting jobs is for the Canadian government the other is for General Electric.
Assuming that the conditions for the binomial distribution are satisfied, what is the probability that the sample will lead Ziteck to reject the shipment if the defect rate is actually 0.05? Show work.
At the beginning of March, WBC management planned to produce 530,000 bottles. The actual number of bottles produced for March was 570,000 bottles.
Find the probability that on any given day there will be more than four breakdowns on this highway during the morning rush.
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