The sum of all deviations from the mean in a dataset is always:a.Zerob.Positivec.Negatived.Undetermined
Question
Solution 1
The sum of all deviations from the mean in a dataset is always zero.
Here's why:
The mean is calculated by adding all the numbers in the dataset and then dividing by the number of items in the dataset.
A deviation is calculated by subtracting the mean from each number in the dataset.
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