Scattergrams

• What is the purpose of scattergrams?

  To show associations between co-variables
• Why are scattergrams relevant in the correlations topic?

  Because they illustrate the relationship between co-variables
• How are co-variables represented in a scattergram?

  • Either co-variable can occupy the x-axis or y-axis
  • Each point on the graph represents the x and y position of the co-variables
• What does each point on a scattergram represent?

  The x and y position of the co-variables
• How does the positioning of co-variables on the axes affect a scattergram?

  It determines which co-variable is being compared on each axis