GCSE Maths Practice: frequency-tables

Question 5 of 10

Estimate total distance walked from the frequency table.

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\( \begin{array}{l} \text{Estimate the total distance walked using the frequency table:} \\ \begin{array}{|c|c|} \hline \text{Distance (km)} & \text{Frequency} \\ \hline 0--2 & 2 \\ 2--4 & 6 \\ 4--6 & 8 \\ \hline \end{array} \end{array} \)

Choose one option:

Check each multiplication carefully, then sum accurately.

Use midpoints of each interval, multiply by frequency, sum for total.