Question 76
The partially completed histogram and the partially completed table show the times taken, to the nearest second, for a group of people to complete a puzzle.
| Time (seconds) | Frequency |
|---|---|
| 1 – 4 | 2 |
| 5 – 8 | 12 |
| 9 – 10 | 8 |
| 11 – 15 | |
| 16 – 20 | 3 |
a.[2]
Complete the table.
b.[2]
Complete the histogram
c.[2]
One of the participants is selected at random. Estimate the probability that this participant completed the puzzle in under 10 seconds, giving your answer as a fraction in its simplest form.
Representations of Data Questions
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.