The total number of hours, measured in units of 100 hours that a family runs a vacuum cleaner over a period of one year is a continuous random variable X that has the density function Find the probability that over a period of one year, a family runs their vacuum cleaner(a) Less than 120 hours;(b) Between 50 and 100hours.

Transcribed Image Text:

0 < r <1. f (x) = {2 - x, 1sx< 2. elsewhere. 2. 0,