1MA0 Foundation June 2014 Paper 2 Q17
17 Chris works in a cafe.
At noon one day he records the number of customers sitting at each table in the cafe.
Here are his results.
| Number of customers sitting at a table | Number of tables |
|---|---|
| 0 | 4 |
| 1 | 5 |
| 2 | 10 |
| 3 | 7 |
| 4 | 3 |
| 5 | 1 |
(a) Work out the total number of tables in the cafe. (1)
(b) Work out the total number of customers sitting at tables in the cafe. (2)
(c) Work out the mean number of customers sitting at a table. (2)
| Answer | Mark | Notes |
|---|---|---|
| 30 | 1 | B1 cao |
| Answer | Mark | Notes |
|---|---|---|
| 63 | 2 | M1 for [(4 × 0)] + (5 × 1) + (10 × 2) + (7 × 3) + (3 × 4) + (1 × 5) Or [0] + 5 + 20 + 21 + 12 + 5 condone one error or omission or for 67 given as total A1 cao |
| Answer | Mark | Notes |
|---|---|---|
| 2.1 | 2 | M1 for an attempt to divide the number of customers by the number of tables A1 for 2.1 or ft from (a) and (b) |