| Exam Board | AQA |
|---|---|
| Module | Paper 3 (Paper 3) |
| Year | 2024 |
| Session | June |
| Marks | 1 |
| Paper | Download PDF ↗ |
| Mark scheme | Download PDF ↗ |
| Topic | Measures of Location and Spread |
| Type | Find median and quartiles from raw data list |
| Difficulty | Easy -1.8 This is a straightforward 1-mark question requiring only the calculation of Q1 and Q3 positions (21st and 63rd values) from a frequency table, then finding IQR = Q3 - Q1. It's pure recall of a standard procedure with no problem-solving element, and the multiple-choice format removes even the need to show working. |
| Spec | 2.02f Measures of average and spread |
| Number of websites | Frequency |
| 0 | 1 |
| 1 | 4 |
| 2 | 18 |
| 3 | 16 |
| 4 | 5 |
| 5 | 37 |
| 6 | 2 |
| 7 | 1 |
| Answer | Marks | Guidance |
|---|---|---|
| 12 | Circles 1st answer | 1.1b |
| Question 12 Total | 1 | |
| Q | Marking instructions | AO |
Question 12:
12 | Circles 1st answer | 1.1b | B1 | 3
Question 12 Total | 1
Q | Marking instructions | AO | Marks | Typical solutionA random sample of 84 students was asked how many revision websites they had visited in the past month.
The data is summarised in the table below.
\begin{center}
\begin{tabular}{|c|c|}
\hline
Number of websites & Frequency \\
\hline
0 & 1 \\
1 & 4 \\
2 & 18 \\
3 & 16 \\
4 & 5 \\
5 & 37 \\
6 & 2 \\
7 & 1 \\
\hline
\end{tabular}
\end{center}
Find the interquartile range of the number of websites visited by these 84 students.
Circle your answer.
[1 mark]
3 \quad 4 \quad 19 \quad 42
\hfill \mbox{\textit{AQA Paper 3 2024 Q12 [1]}}