Middle value of series is known as:
Average
Median
Highest frequency
Mode
Co-efficient of quartile deviation is calculated by applying following formula:
Q3 - Q1
Mean deviation can be calculated with the help of following formula:
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.
_________ and______ are based upon deviation of values from the average.
M.D and S.D
Range and Q.D
S.D and Q.D
Range and S.D
Q1 represents:
Lower quartile
First quartile
Both (a) and (b)
Neither (a) or (b)
__________ is the positive square root of the mean of squared deviations from mean.
Mean deviation
Standard deviation
Quartile deviation
Co-efficient of variation is located by applying following formula:
(S.D.)2
Q3 can be calculated from:
Median can be calculated from :
Individual series
Discrete series
Continuous series
All the above
