RESEARCH METHODOLOGY

STATISTICAL TECHNIQUES AND TOOLS

MEASURES OF VARIABILITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which MAD values represent the least variability in a data set?
A
MAD:2.25
B
MAD:0.75
C
MAD:3.5
D
MAD:0.99
Explanation: 

Detailed explanation-1: -The Mean Absolute Deviation (MAD) of a set of data is the average distance between each data value and the mean. The mean absolute deviation is the “average” of the “positive distances” of each point from the mean. The larger the MAD, the greater variability there is in the data (the data is more spread out).

Detailed explanation-2: -Mean absolute deviation (MAD) of a data set is the average distance between each data value and the mean. Mean absolute deviation is a way to describe variation in a data set. Mean absolute deviation helps us get a sense of how “spread out” the values in a data set are.

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