Exam-Style Problem
⬅ Back to Subchapter
Browsing as Guest. Progress, bookmarks and attempts are disabled.
Log in to track your work.
June 2022 p53 q1
2484
The time taken, \(t\) minutes, to complete a puzzle was recorded for each of 150 students. These times are summarised in the table.
| Time taken \((t)\) minutes | \(t \le 25\) | \(t \le 50\) | \(t \le 75\) | \(t \le 100\) | \(t \le 150\) | \(t \le 200\) |
|---|---|---|---|---|---|---|
| Cumulative frequency | 16 | 44 | 86 | 104 | 132 | 150 |
- Draw a cumulative frequency graph to illustrate the data.
- Use your graph to estimate the 20th percentile of the data.
Log in to record attempts.