arndogger
arndogger arndogger
  • 03-05-2017
  • Mathematics
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Standard deviation formula

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EtM271
EtM271 EtM271
  • 03-05-2017

Say we have a bunch of numbers like 9, 2, 5, 4, 12, 7, 8, 11.

To calculate the standard deviation of those numbers:

1. Work out the Mean (the simple average of the numbers)2. Then for each number: subtract the Mean and square the result3. Then work out the mean of those squared differences.4. Take the square root of that and we are done!
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imgod
imgod imgod
  • 03-05-2017
i couldnt write it all down so heres a pic

Ver imagen imgod
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