Bivariate - suitability of graph

What does the graph show?

• As the years since the debut increases, so does the number of caps he has.

• As the years since the debut increases, the number of caps he has decreases.

• As the number of caps increases, the years since his debut decreases.

Look at the models. Which of the two lines best fits the highest value (the red dot)?

• straight line

• curved line

Predict the likely number of caps a player will have 3 years after his debut.

• 15

• 25

• 35

Predict the likely number of caps a player will have 14 years after his debut.

• 150

• 90

• 40

The likely number of caps a player will have 14 years after his debut is 150.

Are you confident to use this model to make a prediction?

• very confident

• not very confident

• increased

Is the relationship positive or negative?

• positive

• negative

• no correlation

What is the strength of the relationship?

• sting

• moderate

• weak

What is the direction of the relationship?

• positive

• negative

• no correlation

What type of graph is this?

• box-and-whisker diagram

• pie chart

• scatter graph