Question 22
EasyOriginal question| Age (years) | Number of visitors |
|---|---|
| 10–20 | 8 |
| 20–30 | 15 |
| 30–40 | 19 |
| 40–50 | 22 |
| 50–60 | 9 |
| 60–70 | 4 |
The ages of 77 visitors to a science museum on one morning are grouped below. What is the modal class?
Show the answer and explanation
CorrectNot quiteAnswer C
Correct answer: C
Explanation
The modal class is the class with the highest frequency.
The largest frequency is 22, for the class 40–50.
Worth noting
30–40 is the median class ( falls there), not the modal class. The modal class depends only on which frequency is largest.
- Concept
- Modal class of grouped data
- Typical timeTypical
- 40 s
- Your timeYours
- —
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