Averages and measures of spread
9.3What the syllabus asks of you
- Calculate the mean, median, mode and range for individual data and distinguish between the purposes for which these are used.
- Calculate an estimate of the mean for grouped discrete or grouped continuous data.
- Identify the modal class from a grouped frequency distribution.
Read the notes first
Chapter 9: Averages and spread
Drill this topic
All 41 questions on Averages and measures of spread, untimed — answer on paper, then mark yourself against the mark scheme.
Make a worksheet
Choose the years and how many questions, then print it with the answers on separate pages.
41 questions
These are structured questions, answered in working rather than by picking an option, so they are not listed here one by one. The drill above puts each in front of you with its mark scheme to check against.