A variable t t\,t was measured to the nearest whole number. 48 observations are given in the table below.
| ttt | 30 – 34 | 35 – 42 | 43 – 48 | 49 – 54 |
|---|---|---|---|---|
| Frequency | 8 | 16 | 12 | 12 |
A histogram was drawn, with bar areas proportional to frequency. The bar representing the 35 – 42 class has a width of 4 cm and a height of 3 cm.
Find the width and height of the bar representing the 43 – 48 class.
28 exam-style questions on Edexcel AS 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.