Statistical Analysis of Student Donations
Statistical Analysis of Student Donations
TGM Original
The table below shows a grouped data of donations collected by \(35\) students.
Donations (\(\$x\)) | \(0 < x \le 5\) | \(5 < x \le 10\) | \(10 < x \le 15\) | \(15 < x \le 20\) | \(20 < x \le 25\) | \(25 < x \le 30\) |
|---|---|---|---|---|---|---|
| Frequency | \(2\) | \(2\) | \(6\) | \(6\) | \(15\) | \(a\) |
- Find the value of \(a\).
- Using the information given above, copy and complete the following cumulative frequency table.
Donations (\(\$x\) or less) | \(x \le 5\) | \(x \le 10\) | \(x \le 15\) | \(x \le 20\) | \(x \le 25\) | \(x \le 30\) |
|---|---|---|---|---|---|---|
| Frequency |
- Calculate the number of students who collected \(\$15\) or less.
- Calculate the number of students who collected more than \(\$20\).
Video Solution:
Video solution locked
A free account saves your progress; this video needs tuition enrolment.
Solution:
Solution locked
680+ questions here come with free worked solutions. A free account saves your questions and progress; this one needs tuition enrolment.
Create a free account to practise similar questions.
Answer:(a) \(a=4\). (b) \(2,4,10,16,31,35\). (c) \(10\) students. (d) \(19\) students.
Need help? Join our JC Math tuition classes.
Learn more