Jai's Measures of Central Tendancy

Tuesday, September 30, 2008

  • Arrange data in ascendeing numerical order.

  • Divide the sum of all of the numbers in that set of data by how many numbers there are.
  • With an outlier less accurate..

  • Arrange data in ascending numerical order.
  • Find the middle number by crossing of the end numbers until you have one or two numbers left.
  • If you have two numbers left, add both of those numbers together and then divide that number by two.

  • If you have one more number left, you have got your median.
  • Great to use if there is an outlier.


  • Arrange data in ascending numerical order.
  • You can have more than one mode or no mode at all.


  • Arrange data in ascending numerical number.
  • Subtract the largest piece of dat from the smallest.
  • If you have a large range there is a posibility that you have an outlier.

This is a video that I found about mean, medain, mode, and range.


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