7 The following histogram represents the lengths of worms in a garden.
\includegraphics[max width=\textwidth, alt={}, center]{67412184-38f6-4b37-afe3-4a149a2e0586-10_789_1195_301_466}
- Calculate the frequencies represented by each of the four histogram columns.
- On the grid on the next page, draw a cumulative frequency graph to represent the lengths of worms in the garden.
\includegraphics[max width=\textwidth, alt={}, center]{67412184-38f6-4b37-afe3-4a149a2e0586-11_1111_1409_251_408} - Use your graph to estimate the median and interquartile range of the lengths of worms in the garden.
- Calculate an estimate of the mean length of worms in the garden.
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