4MA0 Higher June 2013 Paper 3 Q1
1 The table shows information about the mark scored on an examination question by each of 40 students.
| Mark | Number of students |
|---|---|
| 0 | 13 |
| 1 | 2 |
| 2 | 3 |
| 3 | 8 |
| 4 | 14 |
Work out the mean mark.
(3)
| Scheme | Marks |
|---|---|
| (0×13) + 1×2 + 2×3 + 3×8 + 4×14 or (0) + 2 + 6 + 24 + 56 or 88 | M1 |
| “88” ÷ 40 | M1 |
| 2.2 | A1 |
| (3) |
Notes
M1: for sum of at least 3 products (products may or may not be evaluated)
M1: (dep) for division by 40 (or by their 40)
A1: accept 2.2 or \(\dfrac{11}{5}\) or \(2\dfrac{1}{5}\)
Also accept ‘2’ if both method marks are scored.