Angela's Measures of Central Tendency

4:28 PM

(2) Comments


Mean

  • put raw data into an ascending order
  • add all data
  • divide it by how many numbers/ data
  • also known as the average of the data

4.3 is the mean

Median

  • put raw data into an ascending order
  • find the middle
  • there can be 2 medians





3.5 is the median

Mode

  • put raw data into an ascending order
  • most common data
  • you can have more than one mode
  • you can have no mode




3 is the mode



Range

  • put raw data into an ascending order
  • find the largest and smallest number
  • then subtract the smallest from the largest number







8 is the range


Here is a great video explaining Mean, Median, and Mode.





































angela905

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2 Responses to "Angela's Measures of Central Tendency"

Vikram 9-05 said :
October 12, 2008 at 10:47 AM
Good job Angela (Dare I say your real name). I like the way that the information just shows up with out opening a new page. *Gives you a thumbs up*
melanie905 said :
October 12, 2008 at 6:13 PM
good job angela! but you didnt attach any links. also, dont forget to explain what you're suppose to do if theres two middle numbers. there could only be one median. you wrote ---> theres could be two medians. but otherwise, good job! :)

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