measures of central tendency

• What do measures of central tendency summarize?

  A whole set of data with a single value
• What does the mode represent in a data set?

  The most frequently occurring value or category
• What is an advantage of using the mode?

  Can be used with nominal data categories
• What is a disadvantage of the mode?

  Not as sensitive as the mean
• What is the median in a data set?

  The middle value in a numerically ordered list
• What is an advantage of the median?

  Unaffected by extreme scores
• What is a disadvantage of the median?

  Less sensitive than the mean
• How is the mean calculated?

  Add all values and divide by total number
• What is an advantage of the mean?

  Most sensitive measure of central tendency
• What is a disadvantage of the mean?

  Affected by extreme scores