A jar contains 30 red marbles numbered 1 to 30 and 50 blue marbles numbered 1 to 50. A marble is drawn at random from the jar. Find the probability of the given event. Please enter reduced fractions. (a) The marble is red. P(red)= C] (b) The marble is odd-numbered. P(odd): C] (c) The marble is red or odd-numbered. P(red or odd) = C] (d) The marble is blue or even-numbered. P(blue or even) = C]