Numeracy Intermediate November 2024 Unit 1 Q5
5. Dilwyn asked 20 people how many pets each of them owned.
The results are shown in the table below.
| Number of pets | 0 | 1 | 2 | 3 |
|---|---|---|---|---|
| Number of people | 8 | 4 | 6 | 2 |
Calculate the mean number of pets owned by these 20 people.
You must show all your working. [3]
| Scheme | Marks | Comments |
|---|---|---|
| (0 × 8 +) 1 × 4 + 2 × 6 + 3 × 2 (=22) | M1 | |
| ÷ 20 | m1 | |
| 1.1 (pets) | A1 | ISW Allow an answer of 1 provided from sight of correct working If no marks, award SC2 for an answer of 1.5 from (8 + 4 + 12 + 6) ÷ 20 or 30 ÷ 20 OR SC1 for (8 + 1×4 + 2×6 + 3×2) ÷ 20 or (8 + 4 + 12 + 6) ÷ 20 or 30 ÷ 20 |