What this quiz covers
Grade 12 Statistics Quiz draws its questions at random from a bank of 25 questions. A full worked solution is shown after you answer each one.
Example questions
A sample of the questions you will practise in this quiz. Work them out yourself - the full solution appears after you answer each one.
- Which measure of central tendency is most affected by an outlier?
- Five salaries are R8 000; R9 000; R9 500; R10 000; R60 000. Which measure best describes the typical salary?
- For the data \(12;\ 15;\ 17;\ 20;\ 22;\ 25;\ 30\), find \(Q_1\).
- For the same data, calculate the interquartile range.
- For the same data, calculate the range.