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The MEAN is used when BOTH of the following
conditions are met:
(1) data is SCALED
OR
(2) distribution is NORMAL
Data with equal intervals like speed, weight,
height, temperature, etc.
Because the mean is sensitive to outliers
that are found in SKEWED distributions, you
should only use the mean when the
distribution is more or less normal.

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When to use the mean

  • 1. The MEAN is used when BOTH of the following conditions are met: (1) data is SCALED OR (2) distribution is NORMAL Data with equal intervals like speed, weight, height, temperature, etc. Because the mean is sensitive to outliers that are found in SKEWED distributions, you should only use the mean when the distribution is more or less normal.