Created
February 27, 2014 05:37
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Standard deviation
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| import math | |
| def stddev(numbers): | |
| n = len(numbers) | |
| mean = sum(numbers) / n | |
| dev = [x - mean for x in numbers] | |
| dev2 = [x * x for x in dev] | |
| return math.sqrt(sum(dev2) / n) |
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