(a)[2]
Use the diagram to estimate the interquartile range.
(b)[2]
An onion counts as large when its mass is at least $N$ grams. $24$ of the $60$ onions are large. Find the value of $N$.
Mathematics 4024 · O Level · Cumulative frequency diagrams
Cumulative frequency diagrams — practice question
Lin has recorded the masses, in grams, of $60$ onions. Her results are displayed on the cumulative frequency diagram.