According to Nielsen Television Audience report, in 2009 the average American home had 2.86 televisions sets (more than the average number of people per household, at 2.5 people) If the standard deviation for the number of televisions in a us household is 1.2 and a random sample of 80 u.s households is selected, the mean of the sample belongs to a sampling distribution.
A. What is he shape of the sampling distribution?
B. What is the mean of the sampling distribution
C. What is the standard deviation