Paper 6 October/November 2004 MATHEMATICH (9709/6) A Levels
لطفا برای اطمینان از عملکرد و تجربه بهتر از مرورگرهای مدرن و به روز مانند کروم یا فایرفاکس استفاده کنید.

A hotel has 90 rooms. The table summarises information about the number of rooms occupied each day for a period of 200 days.
a) Draw a cumulative frequency graph on graph paper to illustrate this information.
b) Estimate the number of days when over 30 rooms were occupied.
c) On 75% of the days at most $n$ rooms were occupied. Estimate the value of $n$.