Mathematics, 22.09.2020 23:01 caitybugking
A 32 percent of U. S adults indicated that they have been for HIV at some point in their life. Consider a simple random sample of 15 adults selected at the same time. Find the probability that the number of adults who have been tested for HIV in the sample would be:
a. Three
b. Between five and nine, inclusive
c. More than five, but less than 10
d. Six or more
e. Less than five
f. Find the mean and the variance of the number of people tested for HIV in samples of size 15.
Answers: 3
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