Year 6 Maths Statistics Study Flashcards

[q] Bar Charts

Bar charts also display information (data) and make it easy to compare different amounts. A bar chart should have a title, and titles and labels on the axes.

[a] Example
You can use this bar chart to answer questions such as:
• What is the most popular flavour of crisps?

• How many children like salt and vinegar crisps best?

[q] Line Charts

Line charts are often used to show changes over time. For example, temperature or rainfall readings on weather charts and weight or height changes.

[a] Unlike bar charts, the x axis labels on line charts must line up exactly with the grid lines. All the plotted points need to be joined carefully with straight lines.

Example
You can use this line chart to answer questions such as:
• Which month had the highest rainfall?
• What is the difference between the rainfall recorded in April and in December?

[q] Pie Charts

Pie charts display information by dividing a circle into different-sized pieces to show each measurement.

[a] Use a protractor to draw pie charts. Calculate the angles by finding the measurement as a fraction of the total × 360°.

[q] Interpreting Timetables

A timetable is a table showing the times for something such as buses, trains and school lessons. You can read a timetable to work out what you need to know, for example, what time the next bus arrives at the bus stop.

[a] Example
The timetable below shows the route for the 131 Bus. How long is the journey on Bus B from Langford Nook to Manor Junction? 

Bus B leaves Langford Nook at 10:25. It arrives at Manor Junction at 11:40.
11:40 – 10:25 = The bus takes 1 hour 15 mins.

Using this timetable you can work out how long the bus takes between each stop and the length of the total journey.

[q] Calculating the Mean

The mean of a set of data is the ‘usual’ or ‘average’ amount. The mean of a set of results can be found by adding up the results and dividing them by the number of results.

[a] Example
Patrick played in five football matches. Here is a record of the goals he scored:

Patrick scored 10 goals in total (2 + 3 + 1 + 3 + 1). Calculate the mean number of goals per game by dividing the total number of goals (10) by the number of games played (5).

10 ÷ 5 = 2