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Average calculator

Mean, median, range and standard deviation of a list of numbers.

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Separate the numbers with spaces, commas or new lines.

Results

Mean (average) 86.6

How it works

mean = sum ÷ count

The mean is what most people call the average: add everything up and divide by how many numbers there are. The median is the middle number once they’re sorted (or the halfway point between the two middle ones), so one very large or small value barely moves it. The standard deviation measures how spread out the numbers are around the mean.

  1. Add them up 85, 92, 78, 90, 88 → 433
  2. Divide by how many there are 433 ÷ 5 = 86.6
  3. Middle value when sorted median = 88

Printed from rocketcalc.io/math/average