GCSE Maths Practice: cumulative-frequency

Question 4 of 10

Calculate cumulative frequency for group 4, class 4--6.

\( \begin{array}{l} \text{The table shows books read by students in group 4:} \\ \begin{array}{|c|c|} \hline \text{Books Read} & \text{Frequency} \\ \hline 0--2 & 4 \\ 2--4 & 6 \\ 4--6 & 3 \\ 6--8 & 2 \\ \hline \end{array} \\ \text{What is the cumulative frequency for class 4--6?} \end{array} \)

Choose one option:

Check your addition carefully to get 13.

Add all frequencies including the 4--6 class to get cumulative frequency.