Foundation November 2021 Paper 3 Q20
20 Here are the heights, in centimetres, of 15 plants.
| 15 | 20 | 25 | 33 | 17 | 22 | 25 | 18 |
| 22 | 19 | 32 | 35 | 24 | 28 | 19 |
Draw a stem and leaf diagram for these heights. (3)
| Answer | Mark | Mark scheme | ||||||
|---|---|---|---|---|---|---|---|---|
| B2 | for a fully correct ordered diagram | ||||||
| (B1 | for a fully correct unordered diagram or for an ordered diagram with one error or omission) | |||||||
| Key: eg 2|5 represents 25 | B1 | (indep) for correct key (units not required but must be correct if stated) eg 2|5 represents 25 (cm) |
Additional guidance
Can be in reverse vertical order (with matching leaves) eg 3, 2, 1
One number in the wrong position is one error.