Of the students who take PE at Arundel High School in any given school year, 20% are seniors. The most popular PE class is Walking Wellness, and 60% of the seniors who take PE take this course, while 15% of the rest of the PE students take Walking Wellness. Make a two-way table to help answer the questions below.
a) What is the probability that a senior does not take the Walking Wellness class?
b) What is the probability that a randomly selected Walking Wellness students is a senior?
