Let X have the probability distribution f x J UP 1 0 x 1 0 elsewhere y 1 2 3 Use integers or fractions for any numbers in the expression 1 2 What formula can be used to find the probability density function of Y OA g y f w y J f w y J B g y Show that the random variable Y 2 In X has a chi squared distribution with 2 degrees of freedom OC g y f w y J D g y f w y Now find the probability density function of Y for y 0 A