__________ is the positive square root of the mean of squared deviations from mean.
Mean deviation
Standard deviation
Quartile deviation
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.
Range is the numerical difference between the
First and the Last value
Medium value
Largest and the Smallest value
Small value
The average is reliable only when the set of data is
Discrete data
Homogeneous
Heterogeneous
Raw data
The statistical tool to measure changes over time is
Averages
Index number
Deviation
Variance
The range of simple correlation coefficient is:
Minus infinity to infinity
0 to infinity
Minus one to plus one
0 to hundred
The most commonly used measure of position is
Percentiles
Deciles
_________ 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 Q.D
Median can be calculated from :
Individual series
Discrete series
Continuous series
All the above
For standard deviation, the relative measure is called
Coefficient deviation
Arithmetic mean
Median
