0580 P41 - Nov 2024 - Q3 - 8 marks
11810
Waiting times for 120 patients are:
| t (minutes) | \(0<t\le10\) | \(10<t\le20\) | \(20<t\le40\) | \(40<t\le50\) | \(50<t\le80\) |
|---|---|---|---|---|---|
| Frequency | 2 | 46 | 33 | 26 | 13 |
(a) Estimate the mean waiting time. [4]
At another centre the histogram below represents 90 patients; none waits more than 80 minutes.
(b) Complete the bar for waiting times between 10 and 30 minutes. [4]
