Constructing scatter graphs by utilising technology | Maths

Starter quiz

Which two options below are examples of spreadsheet software?
- Google Sheets ✓
- Google Docs
- Microsoft Excel ✓
- Microsoft Power Point
Which type of graph is a visual representation for bivariate data?
- bar chart
- pictogram
- pie chart
- scatter graph ✓
Which is another term to describe the response variable in bivariate data?
- dependent variable ✓
- independent variable
- explanatory variable
Which two terms describe a measure in bivariate data whose value is predicted to affect the other measure?
- dependent variable
- explanatory variable ✓
- independent variable ✓
- response variable
Which variable should be represented on the horizontal axis of a scatter graph?
- dependent variable
- independent variable ✓
A set of bivariate data measures hours of daylight in a day and maximum temperature for each day. Which variable is most likely to be the independent variable?
- hours of daylight ✓
- maximum temperature

Google Sheets and Microsoft Excel are examples of ______ software.
- 'spreadsheet' ✓
Which is a correct description for a scatter graph?
- A circular graph where sectors represent different groups proportionally
- A graph consisting of bars to representing the frequency of objects or groups
- A graph consisting of pictures to represent the frequency of objects or groups
- A graph consisting of two axes to visually represent bivariate data ✓
Which keyboard short cut allows you to copy data that has been highlighted in a spreadsheet?
- ctrl + c ✓
- ctrl + v
- shift + c
- shift + v
When plotting a scatter graph on a spreadsheet, what do you need to select to edit the vertical axis?
- dependent
- series ✓
- $x$ -axis
- $y$ -axis
What steps do you need to take to plot a scatter graph in Desmos, after you have inputted a set of bivariate data?
- Click on 'insert' on the ribbon menu and then select 'chart'.
- Nothing - Desmos will plot a scatter graph automatically. ✓
- Right click on the workspace and select 'insert graph'.
- Type 'scatterplot' into the next empty cell and then select your data.
Look at the scatter graph. Which of the two towns tends to be warmer?
- Town A ✓
- Town B

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Scatter graphs can be constructed quickly using spreadsheets.
Scatter graphs can be constructed quickly using Desmos.
Changing which axis is used for which variable affects how the scatter graph appears.

Pupils may struggle to assign the correct variable to the y-axis when graphing on a spreadsheet.

Explain that the word "series" is used to mean the y-axis in this software.

Scatter graph - A visual representation for bivariate data. It can be useful when determining the nature of the relationship between the two variables