Let x denote the amount of time for which a book on 2-hour reserve at a college library is checked out by a student, and suppose that x has density function f(x)=0.5x for 0
a) P(X =< 1.5)(Give decimal answer to two places past decimal.)
b) P(1 =< X =< 1.5)(Give decimal answer to two places past decimal.)
c) P(X > 1.2)(Give decimal answer to two places past decimal.)
d) Find the median time the book is checked out. (Give decimal answer to two places past the decimal.)
e) Find the mean time the book is checked out. (Give decimal answer to two places past the decimal.)