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American households increasingly rely on cell phones as their exclusive telephone service. It is reported that 50.0% of American households still have landline phone service.
American households increasingly rely on cell phones as their exclusive telephone service. It is reported that 50.0% of American households still have landline phone service. We decide to randomly call eight households and ask if the home has a landline phone.
a. Given the probability distribution, what is the mean number of households with landline service?
b. What is the variance of the probability distribution of the number of households with landline service?
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