6.Classify each of the following random variables as discrete or continuous.

a)The time left on a parking meter

b)The number of bats broken by a major league baseball team in a season

c)The number of cars in a parking lot at a given time

d)The price of a car

e)The number of cars crossing a bridge on a given day

f)The time spent by a physician examining a patient

g)The number of books in a student's bag