Measures of Center and Data Distribution

What is the shape of this graph?

• Symmetric

• Skewed Left

• Skewed Right

• Roughly Symmetric

What is the shape of this graph?

• Symmetric

• Skewed Left

• Skewed Right

• Roughly Symmetric

What is the shape of this graph?

• Symmetric

• Skewed Left

• Skewed Right

• Roughly Symmetric

What is the shape of this graph?

• Symmetric

• Skewed Left

• Skewed Right

• Roughly Symmetric

Determine the shape of this graph, and describe the center and spread of the data

• Skewed Left

  Mean/SD

• Skewed Right

  Mean/SD

• Skewed Left

  Median/IQR

• Skewed Right

  Median/IQR

Determine the shape of this graph, and describe the center and spread of the data

• Skewed Left

  Mean/SD

• Skewed Right

  Mean/SD

• Skewed Left

  Median/IQR

• Skewed Right

  Median/IQR

Determine the shape of this graph, and describe the center and spread of the data

• Symmetric

  Mean/SD

• Roughly Symmetric

  Mean/SD

• Symmetric

  Median/IQR

• Roughly Symmetric

  Median/IQR

Determine the shape of this graph, and describe the center and spread of the data

• Symmetric

  Mean/SD

• Roughly Symmetric

  Mean/SD

• Symmetric

  Median/IQR

• Roughly Symmetric

  Median/IQR

Which measure of center is affected by extreme values?

• mode

• median

• range

• mean

Which measure of center is not affected by extreme values?

• Mean

• Mode

• Range

• Median