GCSE Maths Practice: cumulative-frequency

Question 6 of 10

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

\( \begin{array}{l} \text{The table shows hours spent on homework by students in group 6:} \\ \begin{array}{|c|c|} \hline \text{Hours Spent} & \text{Frequency} \\ \hline 0--2 & 5 \\ 2--4 & 7 \\ 4--6 & 8 \\ 6--8 & 6 \\ \hline \end{array} \\ \text{What is the cumulative frequency for 4--6?} \end{array} \)

Choose one option:

Carefully sum each class to ensure cumulative total is correct.

Add all frequencies up to the 4--6 class to find cumulative frequency.