measures of central tendency

• What is meant by measures of central tendency?

  Any measure of the average value in data
• what is included in the measures of central tendency?

  • mean
  • median
  • mode
• explain mean

  • most sensitive as includes all values from data.
  • more representative of data as a whole.
  • easily distorted by extreme values.
• explain median

  • not easily distorted by extreme values.
  • less sensitive as does not include all values
• what is the name when there is 2 modes?

  bi-modal
• explain mode

  • crude measure
  • not really representative
  • data in categories- mode can only be used
• what is meant by crude measure?

  simple and not a precise way of measuring something