An agricultural scientist is investigating the relationship between daily average soil moisture level and the sweetness of grapes. For a sample of 13 grapevines (labelled A to M), the daily average soil moisture level (measured as a percentage) and the sugar content of the harvested grapes (measured in degrees Brix, ∘Brix^\circ\text{Brix}∘Brix) were recorded.
The data collected is shown in Table 2.
Table 2: Daily average soil moisture levels and sugar content for grapevines A to M.
| A | B | C | D | E | F | G | H | I | J | K | L | M | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daily average soil moisture (%) | 35 | 32 | 30 | 28 | 26 | 24 | 22 | 20 | 18 | 16 | 14 | 12 | 10 |
| Sugar content (∘Brix^\circ\text{Brix}∘Brix) | 11 | 14 | 16 | 16 | 18 | 21 | 20 | 16 | 23 | 25 | 23 | 24 | 22 |
The scientist calculated the mode and median sugar content of the harvested grapes. Calculate these two descriptive statistics.
235 exam-style questions on AQA A Level Psychology Data handling and analysis. Each one has a worked solution and a mark scheme showing where the marks go.