(i)[4]
Use graph paper to draw a cumulative frequency graph for this data.
(ii)[2]
Estimate how many days had more than $30$ rooms occupied.
(iii)[2]
On $75\%$ of the days at most $n$ rooms were occupied. Estimate the value of $n$.
Mathematics 9709 · AS & A Level · Sampling and estimation
Sampling and estimation — practice question
The hotel contains $90$ rooms. The table gives details of how many rooms were occupied on each day over a span of $200$ days.