The sum of the probability that an event will happen and the probability that the event will not happen is 1. Consider the experiment of selecting 1 card at random from a complete deck of 52 cards. Compute the probabilities of the events in the following (enter your answers as fractions):

a. Not drawing a heart
b. Not drawing a black card
c. Drawing a black card, an ace, or a number less than 8
d. Not drawing a Jack