Question

Please please please help! Will give medal!!

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?

Answer 1

Part B: What is the probability that a student who does not like watching television also does not like reading?

Answer 2

I mainly just need help with Part B only