Consider each distribution. Determine if it is a valid probability distribution or not, and explain your answer. (a) X 0 1 2 P(x ) 0.23 0.60 0.17 O No. The probabilities sum to 1. O No. The probabilities do not sum to 1. Yes. The probabilities sum to 1, Yes. The probabilities do not sum to 1. ( b ) X 0 1 2 P(x ) 0.23 0.60 0.27 Yes. The probabilities do not sum to 1, No. The probabilities do not sum to 1. Yes. The probabilities sum to 1. No. The probabilities sum to 1