10 lines
210 B
Python
10 lines
210 B
Python
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import math
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def mean_std(xs):
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n = len(xs)
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mean = sum(xs) / n
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variance = sum((x - mean) ** 2 for x in xs) / n
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std = math.sqrt(variance)
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return (mean, std)
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print(mean_std([2,4,4,4,5,5,7,9]))
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