Mathematics
Grade6
Easy

Question

Find the MAD for the data set: 65, 90, 85, 70, 70, 95, 55

  1. 12.24
  2. 75.7
  3. 85.7
  4. 40

hintHint:

Algorithm for calculating MAD:
  1. To find the mean absolute deviation of the data, start by finding the mean of the data set.
  2. Find the sum of the data values and divide the sum by the number of data values.
  3. Find the absolute value of the difference between each data value and the mean: |data value – mean|.
  4. Find the sum of the absolute values of the differences.
  5. Divide the sum of the absolute values of the differences by the number of data values.

The correct answer is: 12.24


    Step 1 of 2:
    Given the dataset, 65, 90, 85, 70, 70, 95, 55
    The mean is fraction numerator 65 plus 90 plus 85 plus 70 plus 70 plus 95 plus 55 over denominator 7 end fraction  = 75.714
    Step 2 of 2:
    MAD = 
    = 12.24
    So, the MAD is 12.24
    Final Answer:
    The right choice is-- a. 12.24

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