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Year 11 (2025) Maths Standard (2025) Classifying Data

Grouped Frequency Tables

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Questions
Question 1
15390

The ages of students at a school were recorded.

a) How many students are younger than 10?
b) Which class occurred the most?
c) What percentage of students were older than 15?

\[\begin{array}{ | c | c | c| }
\hline \quad \text{Class} \quad & \quad \text{Class Centre} \quad & \quad \text{Frequency } \quad \\
\hline 4-6& 5&98\\
\hline 7-9 & 8&198\\
\hline 10-12& 11&212\\
\hline 13-15& 14&245\\
\hline 16-18& 17&204\\
\hline & \text{Total}& 957\\
\hline \end{array}\] 

 

Part a:
296
1 mark
Part b:
A.
13-15
Correct
B.
10-12
C.
16-18
D.
7-9
Part c:
21.3
 \(\%\) (1 d.p) 1 mark

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