Higher June 2024 Paper 2 Q12
12 Ali uses a fitness tracker to count the number of steps he walks each day for 7 days.
For the first 4 days, his mean number of steps is 11 800
For the next 3 days, his mean number of steps is 13 207
Work out his mean number of steps for the 7 days.
(3)
| Scheme | Marks |
|---|---|
| 4 × 11 800 (= 47 200) or 3 × 13 207 (= 39 621) or 86 821 | M1 |
| \(\dfrac{\text{``}{47\,200}\text{''} + \text{``}{39\,621}\text{''}}{7}\left(= \dfrac{86821}{7}\right)\) | M1 |
| Correct answer scores full marks (unless from obvious incorrect working) Answer: 12 403 | A1 |
| (3) | |
| (3 marks) |
Notes
M1: for one correct product or for the sum of the products
M1: for a fully correct method to find the mean for the 7 days
A1: cao