5. Which of the following is a discrete random variable? a the average amount of electricity consuied b te number of patients in a hospital c the amount of paint used in Tepainting a building d te average weight of female athletes 6- Which ofthe following represents a subset of a sample space? 2 sample point C probability b event statistics 7. Which of the following is a measure of spread of a random variable? 2 standard deviation Cmean b median d probability