Sponsor Area
Measures Of Dispersion
If in the previous question, each worker is given a hike of 10% in wages, how are the mean and standard deviation values affected?
With the hike of 10% in wages, the mean will be Rs. 220 / (200 + 20)
There will be affected on standard deviation
Some More Questions From Measures of Dispersion Chapter
Calculate the mean deviation about mean and standard deviation for the following distribution:
Classes
Frequencies
20–40
3
40–80
6
80–100
20
100–120
12
120–140
9
50
Classes
Frequencies
20–40
3
40–80
6
80–100
20
100–120
12
120–140
9
50
A measure of dispersion is a good .supplement to the central value in understanding a frequency distribution. Comment
Define dispersion.
How many methods are there to calculate dipersion?
Define range.
Define quartile deviation.
How is coefficient of quartile deviation calculated?
Define mean deviation.
Define standard deviation.
Give formula to calculate standard deviation of a frequency destribution series by direct method.
Sponsor Area
Mock Test Series
Mock Test Series