The mean absolute deviation of this data set is 0.2
What is the mean absolute deviation of this data set?
The dataset is given as
0.7, 1.4, 3 and 2
Calculate the mean using
m(x) = Sum/Count
So, we have
m(x) = (0.7 + 1.4 + 3 + 2)/4
Evaluate
m(x) = 1.775
The mean absolute deviation is calculated as
Deviation = 1/n∑|(x - m(x))|
So, we have
Deviation = 1/4 * (|0.7 - 1.775| + |1.4 - 1.775| + |3 - 1.775| + |2 - 1.775|)
This gives
Deviation = 1/4 * (-1.075 + 0.375 + 1.225 + 0.225)
Evaluate
Deviation = 0.1875
Approximate
Deviation = 0.2
Hence, the mean absolute deviation of this data set is 0.2
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