display quantitative and qualitative data

• Bar charts:Outline:

  bar charts Discrete data, bars do not touch.

  When to use a bar chart?When there are separate conditions.
• Histograms:Outline:

  histogram Data is continuous

  When to use a histogram:

  Conditions are not separate.
• Scattergrams:Outline:

  scattergraph When there are covariables.When to use a scattergram:

  Looking at different conditions and see which associate with each other.
• scattergraphs:

  Normal distribution:

  Outline:

  normal distribution When the mean median and mode are similar to one another. And there is a 50 -50 balance on either side. The graph will also be bell shaped.
• scattergraphs:

  Positive distribution:

  Outline:

  positive distributionIt is where there is a positive  skew on the graph. 

  Is the mean, mode or median the highest value?

  Mode is the highest value.

  Does this indicate an easy or difficult test?

  It indicates an easy    test.

  Negative distribution:Outline:

  Negative skew.

  Is the mean, mode or median the highest value?

  Mode is the highest.

  Does this indicate an easy or difficult test?

  Indicates a difficult test.