solve these questions:

A continuous random variable X that can assume values between x = 1 and x = 3 has a density function given by f(x) = 1/2. () Show that the area under the curve is equal to 1. (b) Find P(2 6). (b) What is the probability that a major repair occurs in the first year?Let X and Y denote the lengths of life, in years, of two components in an electronic system. If the joint density function of these variables is (e ( +). 130, y>0. f(x, y) = 10, elsewhere, find P(0