Created
June 18, 2022 23:33
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Python implementation of standard deviation.
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| import math | |
| # https://en.wikipedia.org/wiki/Unbiased_estimation_of_standard_deviation | |
| def std_deviation(items, mean): | |
| sum_ = sum([(i-mean)**2 for i in items]) | |
| N = len(items) # the size of the population | |
| return math.sqrt(sum_ / (N-1)) |
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