SOLUTION: Eighty students in a school cafeteria were asked if they favored a ban on smoking in the cafeteria. The results of the survey were shown in the table. Class: Favor O

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Question 851799: Eighty students in a school cafeteria were asked if they favored a ban on smoking in the cafeteria. The results of the survey were shown in the table.
Class: Favor Oppose No opinion
Freshman 15 27 8
sophomore 23 5 2
Determine the probability that a randomly selected student is a sophomore or opposed to the ban on smoking in the cafeteria.
Answer by ewatrrr(24785) About Me  (Show Source):
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Hi,

Class:        Favor      Oppose      No opinion

Freshman       15          27           8          50 F

sophomore      23           5           2          30 S

                                   32

Determine the probability that a randomly selected student is a sophomore or opposed to the ban on smoking in the cafeteria.

 P (S 0r Opposed) = 30%2F80+%2B++32%2F80+-+5%2F80