Line of best fit

  • Thread starter thomas49th
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  • #1
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Hi, should I use a line of best fit on a cumulative frequency graph or join the ponits. I looked on google and it;s all mis mashed. Is it arbituary or depend on data?

Thanks
 

Answers and Replies

  • #2
HallsofIvy
Science Advisor
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Whether or not you use a linear approximation rather than the actual data depends upon what it is you want to do with the data!
 
  • #3
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For a cumulative frequency graph join the points. The way cumulative frequencies are calculated there cannot be a linear relationship between what is measured and the cumulative frequency.
 

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