Solutions to Unit 1 - The Burns Home Page

8c) Let A represent the event of being a union memberLet B represent the event of being a union memberLet C represent the event of being a union memberLet C represent the event of being a union memberNotice the name is not replaced nAnBnCnD nS nS nS nSP A B C D P A P B P C P D1 2 3 45 4 3 2 10 9 8 71428d) We have 4 possible situationsNUUU, UNUU, UUNU, UUUNWe want P NUUU UNUU UUNU UUUN P NUUU PUNUU PUUNU PUUUN 5 5 4 3 5 5 4 3 5 4 5 3 5 4 3 5 10 9 8 7 10 9 8 7 10 9 8 7 10 9 8 75219a) Let A represent the event of drawing a chocolate bar firstLet B represent the event of drawing a chocolate bar second P A B P A P B10 10 20 20149b) Let A represent the event of drawing a chocolate bar firstLet B represent the event of drawing a chocolate bar secondLet C represent the event of drawing a fruit bar firstLet D represent the event of drawing a fruit bar secondLet E represent the event of drawing a toffee bar firstLet F represent the event of drawing a toffee bar second