Question 1 Report
| Marks | 1 | 2 | 3 | 4 | 5 |
| Number of students | m + 2 | m - 1 | 2m - 3 | m + 5 | 3m - 4 |
The table shows the distribution of marks scored by some students in a test.
(a) If the mean mark is \(3\frac{6}{23}\), find the value of m.
(b) Find the : (i) interquartile range
(ii) probability of selecting a student who scored at least 4 marks in the test.