Question

A group of students were surveyed to find out if they like watching television or reading during their free time. The results of the survey are shown below:
90 students like watching television
20 students like watching television but do not like reading
80 students like reading
40 students do not like watching television
Make a two-way table to represent the data and use the table to answer the following questions.
Part A: What percentage of the total students surveyed like both watching television and reading? Show your work. (5 points)
Part B: What is the probability that a student who does not like watching television also does not like reading? Explain your answer. (5 points)

Answer 1

Answer:

110/170 = 0.6471 = 64.7% or 65%

Step-by-step explanation:

                              reading |   television

Television          |    70        |    20        |        90 total for TV

___________________________________________________

Reading             |    40        |    40         |       80 total for reading

___________________________________________________

Total students   |    110        |      60       |        170 total students

Students who like BOTH are 70 + 40 = 110   percentage = part/whole = 110/170

Students who ONLY like television = 20

Students who ONLY like reading = 40