The frequency table shows the time taken for 100 people to travel to an event.
| Time (minutes) | Frequency |
|---|---|
| 0<t≤100 < t \leq 100<t≤10 | 8 |
| 10<t≤2010 < t \leq 2010<t≤20 | 17 |
| 20<t≤3020 < t \leq 3020<t≤30 | 24 |
| 30<t≤4030 < t \leq 4030<t≤40 | 31 |
| 40<t≤5040 < t \leq 5040<t≤50 | 14 |
| 50<t≤6050 < t \leq 6050<t≤60 | 6 |
Find the percentage of people that travelled for more than 30 minutes to the event, the class interval that contains the median and an estimate for the mean time taken for people to travel to the event.
111 exam-style questions on OCR GCSE Maths Averages from Frequency Tables. Each one has a worked solution and a mark scheme showing where the marks go.