What this quiz covers

Grade 9 Data Handling Quiz 1 draws its questions at random from 29 questions across these topics:

• Range
• Stem-and-leaf
• Scatter plots
• Correlation
• Pie charts
• Median & mean
• Bar graphs

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.

1. Calculate the range of this set of test scores: 143, 128, 132, 128, 116, 145, 128, 136, 141.
2. Which statement about the range is TRUE?
3. The stem-and-leaf diagram shows the Mathematics marks of a Grade 9 class. How many learners wrote the test?
4. The stem-and-leaf diagram shows a Grade 9 class's Mathematics marks. What is the modal mark?
5. The stem-and-leaf diagram shows a Grade 9 class's Mathematics marks. Determine the median mark.