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August 30, 2014

Homework Help: statitics

Posted by Anonymous on Sunday, October 17, 2010 at 5:36pm.

Approximately 40% of all U.S. households own at least one dog (according to the humane society). Suppose 15 households are randomly selected for a pet ownership survey.
a. What is the probability that exactly eight of the households have at least one dog?
b. What is the probability that exactly four of the households have at least one dog?
c. What is the probability that more than 10 households have at least one dog?

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