Mathematics
Grade6
Easy
Question
Find the MAD for the following set: 85, 90, 68, 75, 79
- 79.4
- 6.48
- 32.4
- 79
Hint:
Algorithm for calculating MAD:
- To find the mean absolute deviation of the data, start by finding the mean of the data set.
- Find the sum of the data values and divide the sum by the number of data values.
- Find the absolute value of the difference between each data value and the mean: |data value – mean|.
- Find the sum of the absolute values of the differences.
- Divide the sum of the absolute values of the differences by the number of data values.
The correct answer is: 6.48
Step 1 of 2:
Given the dataset, 85, 90, 68, 75, 79
The mean is 
= 79.4
Step 2 of 2:
MAD = 
= 
= 6.48
So, the MAD is 6.48
Final Answer:
The right choice is-- b. 6.48
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