Question: Data was collected randomly from 50 students at the University of People asking them the number of courses they were taking a given term.
# of Courses | Frequency | Relative Frequency |
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Cumulative Relative Frequency |
1 | 30 | 0.6 |
|
2 | 15 |
|
|
3 |
|
|
|
- Fill in the missing blanks.
- What proportion of students take exactly two courses?
- What proportion of students take one or two courses?
Solution:
Data was collected randomly from 50 students at the University of People asking them the number of courses they were taking a given term.
| # of Courses | Frequency | Relative Frequency | Cumulative Relative Frequency |
| 1 | 30 | 0.6 | 0.6 |
| 2 | 15 | 0.3 | 0.9 |
| 3 | 5 | 0.1 | 1 |
1.) Proportion of students taking exactly 2 courses: 0.3 or 30%
2.) Proportion of students taking 1 or 2 courses:
Total Frequency Of student taking 1 courses+ Total frequency of student taking 2 courses = 30 + 15 = 45
Cumulative relative frequency of students taking one or two courses = 45/50 = 0.9
This means that Proportion of students taking 1 or 2 courses is 0.9 or 90%