Question

Analyze the table below and complete the instructions that follow. Plays a Sport Does Not Play a Sport Total Freshman 17 4 21 Sophomore 12 5 17 Junior 9 6 15 Senior 6 8 14 Total 44 23 67 A sample of students were surveyed during lunch and asked whether or not they played a sport. A student randomly chosen from the sample plays a sport. Find the probability that the student is a freshman or a senior.

Answer 1

There are 44 students in the sample that play a sport. Of those, 17 are freshmen and 6 are seniors, for a total of 23 in the groups of interest.

The probability that the student is a freshman or a senior is 23/44.