(Answered) In an effort to check the quality of their cell phones a

Economics

In an effort to check the quality of their cell? phones, a manufacturing manager decides to take a random sample of 10 cell phones from? yesterday's production? run, which produced cell phones with serial numbers ranging? (according to when they were? produced) from 82002000 to 82002999. Assume that each of the 1000 phones is equally likely to be selected.

?a) What distribution would they use to model the? selection?

?b) What is the probability that a randomly selected cell phone will be one of the last 87 to be produced.

?c) What is the probability that the first cell phone selected is either from the last 245 to be produced or from the first 44 to be produced.

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Business Economics, Economics

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