10) (5 points) Determine if the following are true or false. You do not need to explain. a) A random variable is continuous. For any value a, P(X = a) ~ 0 always. b) A standard normal curve means that the mean is I and standard deviation is 0. c) For the following probability density function, P(X S 2) = d) The amount of buses that pass through a bus line in 20 minutes is a discrete random variable. e If two events are independent, then P(B|A) = P(A)