Find the distribution to model the number of the units
We receive a shipment of 200 units, of which 18 are defective. We test 10 units at random, and we model the number k of the units that test defective by a random variable x.
a) Find the distribution of xb) Find P(x =2)
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Is there a significant difference between the proportion of urban and suburban residents who favor construction of the nuclear plant? Make use of a P-value.
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A newspaper finds that the mean number of typographical errors per page is four. Find the probability that more than three typographical errors are found on a page.
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On a particular test, IQ scores for adults follow a bell-shaped (symmetric) distribution with mean=100 and a variance of 100.
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