weighted_average python Code Snippet in 2025
mathlistintermediate
Last Updated: 1 February 2025
Returns the weighted average of two or more numbers.
- Use
sum()to sum the products of the numbers by their weight and to sum the weights. - Use
zip()and a list comprehension to iterate over the pairs of values and weights.
def weighted_average(nums, weights):
return sum(x * y for x, y in zip(nums, weights)) / sum(weights)weighted_average([1, 2, 3], [0.6, 0.2, 0.3]) # 1.72727
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