A random sample of 100 eighth-grade students is asked to record two variables, whether they have a television in their
bedroom and if they passed or failed their last math test. The results of the survey are summarized below.
- 55 students have a television in their bedroom.
- 35 students do not have a television in their bedroom and passed their last math test.
- 25 students have a television and failed their last math test.
- 35 students failed their last math test.