1. Hospital records indicated that knee replacement patients stayed in the hospital for the number of days shown in the distribution. Number of days stayed Frequency 3 15 4 32 56 6. 19 7 5 Find the following probabilities (a) A patient stayed less than 6 days (b) A patient stayed at most 4 days (c) A patient stayed at least 5 days

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 manufacturer has determined that a machine averages one faulty unit for every 500 it produces. What is the probability that an order of 300 units will have one or more faulty units?

Flexible Work Hours In a recent survey, people were asked whether they would prefer to work flexible hours----even when it meant slower career advancement----so they could spend more time with their families. The figure shows the results of the survey. What is the probability that three people chosen at random would prefer flexible work hours?