Statistical problems - data presentations | Maths | Quizalize & Oak National Academy

Starter quiz

Match each graph to its description.
- bar chart
  
  ⇔
  
  represents frequencies with bars ✓
- pictogram
  
  ⇔
  
  represents frequencies with contextual images and a key ✓
- pie chart
  
  ⇔
  
  circular graph representing different groups proportionally ✓
- scatter graph
  
  ⇔
  
  represents bivariate data as coordinates on a grid ✓
What type of correlation does the scatter graph show?
- negative correlation
- no correlation
- positive correlation ✓
How many giraffes are represented in the pictogram? ______ giraffes
- '5' ✓
The pie charts show the types of potato served by school canteens in two locations. Which statement is always true for the data represented in the pie charts?
- The frequency of mashed potato is greater in Location 4 than Location 5.
- The proportion of mashed potato is greater in Location 4 than Location 5. ✓
- The amount of boiled potato served is the same in both locations
Which place had the same number of visitors on both Saturday and Sunday?
- Museum
- Zoo
- Theatre ✓
This line graph shows data about journey times to work over a week. The median journey time is ______ minutes.
- '28' ✓

Which type of graph would be the most appropriate for showing correlation between bivariate data?
- bar chart
- pictogram
- pie charts
- scatter graph ✓
Which type of graph visually illustrates the context of the data as well as the frequencies?
- bar chart
- line graph
- pictogram ✓
- pie chart
- scatter graph
Which type of graph would be the most appropriate for showing how a single variable has changed over time?
- line graph ✓
- pictogram
- pie chart
- scatter graph
True or false: the scale on scatter graphs always needs to start at zero.
- True
- False ✓
Which type of graph would be inappropriate for representing the data in the table?
- bar chart
- pictogram
- pie chart
- scatter graph ✓
Which elements are missing from this bar chart?
- angles
- an axis break on the vertical axis
- a key
- label for the scale on the vertical axis ✓
- labels on the horizontal axis for the bars ✓

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You always need to start the axis of a scatter graph at (0,0).

The axis of a scatter graph should use a scale that makes the points as clear to see as possible, without distorting the shape of the data.

Pictogram - A pictogram (pictograph) is a graph consisting of pictures to visually represent the frequency of objects or groups.
Bar chart - A bar chart (bar graph) is a graph consisting of bars visually representing the frequency of objects or groups.
Scatter graph - A visual representation for bivariate data. It can be useful when determining the nature of the relationship between two variables
Pie chart - A bar chart (bar graph) is a graph consisting of bars visually representing the frequency of objects or groups