4MA0 Higher June 2016 Paper 3 Q3
3 The table shows information about the number of visits each of 40 adults made to the gym last week.
| Number of visits to the gym | Frequency |
|---|---|
| 0 | 4 |
| 1 | 3 |
| 2 | 12 |
| 3 | 5 |
| 4 | 8 |
| 5 | 5 |
| 6 | 2 |
| 7 | 1 |
Work out the mean of the number of visits to the gym.
(3)
| Scheme | Marks |
|---|---|
| 0×4 + 1×3 + 2×12 + 3×5 + 4×8 + 5×5 + 6×2 + 7×1 or (0) + 3 + 24 + 15 + 32 + 25 + 12 + 7 (=118) | M1 |
| “118” ÷ “40” | M1 |
| 2.95 | A1 |
| (3) |
Notes
M1: condone one error
M1: dep
NB. Allow a value other than 40 provided it has clearly come from the sum of the frequency column
A1: Accept 3 from 118÷40
SC: B2 for 3.05