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

Part A = 73.91%

Part B = 1/2 probability

Explanation:

Part A - 90 + 20 + 80 + 40 = 230(total students)

90 + 80 = 170 students who like tv and reading

170/230 × 100 = 73.91%

Part B - 20(no read)/40(no tv) = 1/2 probability