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Maths Measures of Central Tendency
Updated: 11/29/2019
Maths Measures of Central Tendency
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Storyboard Text

  • I stay the same!
  • I hope you still remember that I am the mean :)
  • Not to brag, but I can be used for both discrete and continuous numeric data. I also take account of all values unlike the other two guys.
  • Can someone tell me what is the average score of this test?
  • Don't worry! I will handle all of this!
  • I want to know what is the mean number of assignments that my collegue gets each week.
  • But I do admit that I am not always representative of the data, and may not reflect the centre of the distribution as well as the other two, because in some cases, especially for continuous data, I might not exist at all. The presence of more than one of me can limit the ability of me in showing the centre or typical value of the distribution because a single value to describe the centre cannot be identified.
  • The mean did not tell you that it can be easily affected by outliers and skewed distributions, and it cannot even be calculated for categorical data
  • The median is actually quite useless most of the time. It cannot be identified for categorical nominal data, as it cannot be logically ordered.
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