A jar contains 12 red marbles numbered 1 to 12, 8 blue marbles numbered 1 to 8, and 4 white marbles numbered 1 to 4. A marble is drawn at random from the jar. Find the probability of the given event. Write your answers as integers or reduced fractions. (a) The marble is red.   ? (b) The marble is not red.    ?    (c) The marble has the number 1 written on it.   ?    (d) The marble is blue with the number 3 written on it.  ?

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