6.88 Consider the following information about passengers on a cruise ship on vacation: 40% check work e-mail, 30% use a cell phone to stay connected to work, 25% bring a laptop with them on vacation, 23% both check work e-mail and use a cell phone to stay connected, and 51% neither check work e-mail nor use a cell phone to stay connected nor bring a laptop. In addition, 88% of those who bring a laptop also check work e-mail and 70% of those who use a cell phone to stay connected also bring a laptop. With E 5 event that a traveler on vacation checks work e-mail C 5 event that a traveler on vacation uses a cell phone to stay connected L 5 event that a traveler on vacation brought a laptop use the given information to determine the following probabilities.

A Venn diagram may help.

a. PsEd

b. PsCd

c. PsLd

d. PsE and Cd

e. PsEC and CC and LC d

f. PsE and C or Ld g. PsEuLd j. PsE and Ld h. PsLuCd k. PsC and Ld i. PsE and C and Ld l. PsCuE and Ld