Reaction time Bivariate

What does a bivariate investigation mean?

• a vehicle with 2 wheels on which you balance

• when you see how one numerical variable affects another

• a relationships where the partners swap roles

For the year 13 Math students at Flaxmere College, how does the time students can hold their breath (in seconds) affect their reaction time (in milliseconds)?

What is the population?

• the year 13 Math students at Flaxmere College

• time students can hold their breath (in seconds)

• reaction time (in milliseconds)

For the year 13 Math students at Flaxmere College, how does the time students can hold their breath (in seconds) affect their reaction time (in milliseconds)?

What is the response variable?

• the year 13 Math students at Flaxmere College

• time students can hold their breath (in seconds)

• reaction time (in milliseconds)

Colour in half of the squares. Then colour in half of the remaining squares. How many squares remain uncoloured?

For the year 13 Math students at Flaxmere College, how does the time students can hold their breath (in seconds) affect their reaction time (in milliseconds)?

What is the explanatory variable?

• the year 13 Math students at Flaxmere College

• time students can hold their breath (in seconds)

• reaction time (in milliseconds)

For the year 13 Math students at Flaxmere College, how does the time students can hold their breath (in seconds) affect their reaction time (in milliseconds)?

What is the unit for the explanatory variable?

• the year 13 Math students at Flaxmere College

• time students can hold their breath (in seconds)

• reaction time (in milliseconds)

• seconds

• milliseconds

It is certain that this

spinner will stop on grey.

• 
• 
• 

It is unlikely that this

spinner will stop on grey.

• 
• 
• 

What type of graph does this show?

• scatter graph

• regression plot

• bar chart

• pie chart

What type of model has been added?

• exponential

• regression

• cubic

• moving average