Foundation January 2022 Paper 1R Q11
11 The table shows information about the number of eggs laid by each of 36 hens in one week.
| Number of eggs | Frequency |
|---|---|
| 0 | 5 |
| 1 | 5 |
| 2 | 3 |
| 3 | 10 |
| 4 | 7 |
| 5 | 6 |
Work out the mean number of eggs laid.
(3)
| Scheme | Marks |
|---|---|
| 0 × 5 + 1 × 5 + 2 × 3 + 3 × 10 + 4 × 7 + 5 × 6 (= 99) or 0 + 5 + 6 + 30 + 28 + 30 (= 99) | M1 |
| “99” ÷ 36 | M1 |
| 2.75 | A1 |
| (3) | |
| (3 marks) |
Notes
M1: for at least 4 correct products with intention to add
A1: oe If no other marks awarded, award SC B1 for 2.8(88…)