Could the number of courses a college student is enrolled in be related to their employment status? At a local college, a simple random
sample of 150 students was selected. Data was collected on each student on how many courses they were currently enrolled in and
whether they held a job. The data was then presented in the frequency table:
Number of Courses Employment Status Total
Four
Three
Total
No Job
Job
Job
0%
37
No Job
Part A: Calculate the proportion of students in the sample who have a job and are enrolled in at least three courses. Also, calculate the
proportion of students in the sample who do not have a job and are enrolled in at least three courses. (5 points)
Part B: The responses of the 150 students are summarized in the segmented bar graph.
9
20%
150
+
40%
60%
+
80%
100%
Two Courses
Three Courses
Four Courses
Write a few sentences summarizing what the graph reveals about the association between employment status and number of courses in
which students are enrolled among the 150 students in the sample. (5 points) (10 points)
