Abbie'sMeasures of Central Tendency

Thursday, October 2, 2008







  • put data in ascending order



  • Add up all of the number and divid the numbers by how much munbers are in the set of data


1,2,3,4,4,5,6


1+2+3+4+4+5+6= 25



25/7 = 3.57





Median





  • Put set of data in ascending order


  • Find the middle number in the set of data


  • If there are two medians then you have to add then together and divid them by two


1,2,3,4,4,5,6





1,2,3,4,5,6



3+4=7 7/2 = 3.5











  • Put data in ascending order

  • Fing the number that occurs the most



1,2,3,4,4,5,6












  • Put the set of data in ascending order

  • subtract the greatest number from the smallest number




1,2,2,3,4,30



1-30 = 29




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