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

An independent (explanatory) variable is a measure that is predicted to have an effect on another variable

A dependent (response) variable is a measure whose value is predicted to be affected by an explanatory variable

Bivariate data has two variables, where each data point for one variable has a corresponding data point for the other variable.

Constructing scatter graphs

Maths

In this unit, pupils explore different graphs and charts as a way of presenting data visually. Pupils are introduced to scatter graphs and learn how to construct them in this unit. In the future unit, this understanding is extended to using a line of best fit to allow interpolation

In this unit, pupils interpreted and constructed pie charts based on their understanding of fractions and proportion

Graphical representations of data

Data which has two variables that are paired together is called {{ }} data.

Which is another term to describe the explanatory variable in bivariate data?

Which two terms describe a measure in bivariate data whose value is predicted to be affected by the other measure?

Which variable should be represented on vertical axis of a scatter graph?

A set of bivariate data measures children's ages and shoe sizes. Which variable is most likely to be the dependent variable?

Look at the second column in the table. Which scatter graph has chosen the most appropriate scale to plot this data? 

Which point on the graph has the coordinates (8, 2)? 

What are the coordinates of the point marked on this graph?

What is the value of $$a$$ on the horizontal axis? 

What is the value of $$a$$ on the vertical axis? 

{{ }} are a set of information which shows counts or measurements.

Starter Quiz