According to the USA Today Snapshot Knowing drug addicts 45
According to the USA Today Snapshot “Knowing drug addicts,” 45% of Americans know somebody who became addicted to a drug other than alcohol. Assuming this to be true, what is the probability of the following?
a. Exactly 3 people of a random sample of 5 know someone who became addicted. Calculate the value.
b. Exactly 7 people of a random sample of 15 know someone who became addicted. Estimate using Table 2 in Appendix b.
c. At least 7 people of a random sample of 15 know someone who became addicted. Estimate using Table 2.
d. No more than 7 people of a random sample of 15 know someone who became addicted. Estimate using Table 2.
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