RESEARCH METHODOLOGY

STATISTICAL TECHNIQUES AND TOOLS

MEASURES OF VARIABILITY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Determine if the statement as having variability or no variability.Teacher’s room number.
A
Variability
B
No Variability
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -Measures of Variability The range is the simplest measure of variability. You take the smallest number and subtract it from the largest number to calculate the range. This shows the spread of our data.

Detailed explanation-2: -Variability is most commonly measured with the following descriptive statistics: Range: the difference between the highest and lowest values. Interquartile range: the range of the middle half of a distribution. Standard deviation: average distance from the mean.

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