Ms. Dee is so MEAN; she makes me ADD then DIVIDE

 

Mnemonic Device:

  • Ms. Dee is so MEAN; she makes me ADD then DIVIDE.

Explanation: to remember how to calculate the average (mean).

  • MEAN – ADD all the numbers then DIVIDE by the total number of items

Example:

  • 4 + 8 + 12 = 24
  • 3 numbers (factors)
  • 24/3 = 8
  • 8 is the average (mean)

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