1.) a computer package sale comes with two different choices of printers and four different choices of monitors. if a store wants to display each package combination that is for sale, how many packages must be displayed? make a tree diagram showing the outcomes for selecting printer and monitor.
2.)your company routes all materials from NY to Chicago, then from Chicago to Denver, and then from Denver to L.A. There are four routes from NY to Chicago, six routes from Chicago to Denver, and three routes from Denver to LA. How many routes are there from NY to LA?
3.)you supervise 12 nurses and must assign one to head the ward on the first floor, one to head the ward on the second floor, one to head the ward on the third floor, and one to head the ward on the fourth floor. in how many ways can this be done?
4.)an urn contains 12 balls identical in every respect except color. there are 3 red balls, 7 green balls, and 2 blue balls. you draw two balls from the urn, but replace the first ball before drawing the second. find the probability that the first ball is red and the second is green. what is probability if repeating EXCEPT do not replace the first ball before drawing the second?
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answer-5
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