Paper 6 May/June 2005 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.

There are 5000 schools in a certain country. The cumulative frequency table shows the number of pupils in a school and the corresponding number of schools.
a) Draw a cumulative frequency graph with a scale of $2{\text{ }}cm$ to 100 pupils on the horizontal axis and a scale of $2{\text{ }}cm$ to 1000 schools on the vertical axis. Use your graph to estimate the median number of pupils in a school.
b) 80% of the schools have more than $n$ pupils. Estimate…