the random number generator on calculators randomly generates a number 0 and 1. The random variable X, the number generated, follows a uniform probability distritbution. What is the probability of generating a number greater than 0.89

Show that the probability of drawing a club at random from a standard deck of 52 playing cards is the same as the probability of drawing the ace of hearts at random from a set of four cards consisting of the aces of hearts, diamonds, clubs, and spades.

A random number generator selects two integers from 1 to 30. What is the probability that both numbers are less than 12?