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38amica
38amica
23.11.2019 • 
Mathematics

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 83009000 to 8300. 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 125 to be produced.
c) what is the probability that the first cell phone selected is either from the last 231 to be produced or from the first 73 to be produced.

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