(i)[1]
State the class interval that contains the lower quartile.
(ii)[4]
Use the grid to draw a histogram that represents the data in the table.
Mathematics 9709 · AS & A Level · Sampling and estimation
Sampling and estimation — practice question
The masses, in kilograms, of 50 children attending a medical check-up were measured correct to the nearest kilogram. The data are set out in the table:
Mass (kg): $10$-$14$, $15$-$19$, $20$-$24$, $25$-$34$, $35$-$59$
Frequency: $6$, $12$, $14$, $10$, $8$.
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Correct interval for the answer $15\text{-}19$ (kg), or an equivalent class interval.” …
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