Co-efficient of variation is located by applying following formula:
(S.D.)2
L- S is the formula of calculating:
Standard deviation
Range
Coefficient of range
Mode
Write the false statement:
Range is the easiest and simplest measure because it is the difference between two extreme items.
Quartile deviation is superior to the range as it is not affected too much by the value of extreme items.
Range and quartile deviation are based on all the items of series.
Range and quartile deviation are useful for general study of variability.
is used to calculate:
Decile
Octile
Quartile
Percentile
Co-efficient of quartile deviation is calculated by applying following formula:
Q3 - Q1
______________ is not independent of scale.
Mean deviation
Quartile deviation
Q1 represents:
Lower quartile
First quartile
Both (a) and (b)
Neither (a) or (b)
Middle value of series is known as:
Average
Median
Highest frequency
Mean deviation can be calculated with the help of following formula:
Median can be calculated from :
Individual series
Discrete series
Continuous series
All the above
