Co-efficient of variation is located by applying following formula:
(S.D.)2
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 the positive square root of the mean of squared deviations from mean.
Mean deviation
Standard deviation
Quartile deviation
Mode
______________ is not independent of scale
For standard deviation, the relative measure is called
Coefficient deviation
Arithmetic mean
Median
is used to calculate:
Decile
Octile
Quartile
Percentile
cf is used for:
Common factor
Cumulative frequency
Common value
None of above
Range is located by applying the following formula:
L - S
Q3 - Q1
Median can be calculated from :
Individual series
Discrete series
Continuous series
All the above
_________ and______ are based upon deviation of values from the average.
M.D and S.D
Range and Q.D
S.D and Q.D
M D and QD
