Consider the following discrete probability distribution. x15223440P(X = x)0.160.490.200.15 a. Is this a valid probability distribution? multiple choice Yes, because the probabilities add up to 1. No, because the gaps between x values vary. b.What is the probability that the random variableXis less than 38?(Round your answer to 2 decimal places.) c. What is the probability that the random variableXis between 10 and 25?(Round your answer to 2 decimal places.)