Respuesta :

elaineandrei93

Answer:

18/7

Step-by-step explanation:

Note that the mean of the data is equal to (12+15+17+18+15+20+22)/7, which is 17. For each value in the data set, we then find the distance from the mean:

  • |12-17|=5
  • |15-17|=2
  • |17-17|=0
  • |18-17|=1
  • |15-17|=2
  • |20-17|=3
  • |22-17|=5

To find the mean absolute deviation, average these distances to get 18/7.

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