A variable y y\,y was measured to the nearest whole number. 40 observations are given in the table below.
| yyy | 14 – 25 | 26 – 33 | 34 – 39 | 40 – 43 |
|---|---|---|---|---|
| Frequency | 12 | 8 | 12 | 8 |
A histogram was drawn and the bar representing the 14 – 25 class has a width of 4.8 cm and a height of 2.5 cm.
Find the width and height of the bar representing the 26 – 33 class.
Find the width and height of the bar representing the 34 – 39 class.
160 exam-style questions on Edexcel A Level Maths Representations of Data, covering 3.1 Outliers, 3.2 Box Plots, 3.3 Cumulative Frequency, 3.4 Histograms, and 3.5 Comparing Data. Each one has a worked solution and a mark scheme showing where the marks go.