Let X be a random variable with possible values 1, 2, 3, 4, and 5. Assume that 2 is twice as likely as 1, 3 is one-third as likely as 2, 4 is four times as likely as 3, and 5 is half as likely as 4. Which of the following is true (to the nearest three decimals)
a. P(X >= 4) = 0.522 b. P(X = 1 or X = 5) = 0.329 c. P(X <= 2) = 0.367 d. P(X = 2 or X = 3) = 0.293