Foundation June 2023 Paper 1R Q11
11 The table shows how many cousins each of 30 students in Class A has.
| Number of cousins | Frequency |
|---|---|
| 0 | 3 |
| 1 | 7 |
| 2 | 6 |
| 3 | 11 |
| 4 | 1 |
| 5 | 2 |
(a) Work out the range of the number of cousins. (1)
(b) Write down the mode of the number of cousins. (1)
(c) Work out the mean of the number of cousins. (3)
| Scheme | Marks |
|---|---|
| 5 | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| 3 | B1 |
| (1) |
| Scheme | Marks |
|---|---|
| eg 0 × 3 + 1 × 7 + 2 × 6 + 3 × 11 + 4 × 1 + 5 × 2 (= 66) or 0 + 7 + 12 + 33 + 4 + 10 (= 66) | M1 |
| “66” ÷ 30 | M1 |
| Correct answer scores full marks (unless from obvious incorrect working) Answer: 2.2 | A1 |
| (3) | |
| (5 marks) |
Notes
M1: for at least 5 correct products and intention to add
A1: oe