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Data Handling and Statistics

Data Distribution

The distribution of a dataset describes its overall shape. Comparing the mean and median tells us whether a distribution is skewed:

  • Mean > median → skewed right (longer tail on the right)
  • Mean < median → skewed left (longer tail on the left)
  • Mean = median → symmetric

Practice: Data Distribution

Classify a distribution's skew from its mean and median, or identify a tail direction.