Amedia statistics agency reports that the mean number of televisions in a household in a particular country is 2.24. assume that the population standard deviation number of television sets in this country is 1.38. (a) what type of variable is number of television sets in a household? (b) a random sample of 40 households results in a total of 102 television sets. what is the mean number of televisions in these 40 households? (c) what is the probability of obtaining the sample mean obtained in part (b) or higher if the population mean is 2.24?