Question
Mathematics Question on Statistics
A measure of dispersion is indicative of the reliability of
A
average
B
highest observation
C
lowest observation
D
variability.
Answer
average
Explanation
Solution
Since disperssion measures variability from the average, therefore, greater the dispersion, the greater is the variability and smaller the dispersion, smaller is the variability from the average. This means that a measure of dispersion is an indicator of the reliability of average. Greater the dispersion, less reliable is average and smaller the dispersion, more reliable is average.