811. Standard deviation of 5,5,5,5,5 is equal to
A. unity
B. 8
C. 2
D. zero
812. One-half the difference between the third and first quartile is called __________
A. Mean deviation
B. Quartile deviation
C. standard deviation
D. Coefficient of quartile deviation
813. ___________ is the central value of an array data.
A. Mean
B. median
C. mode
D. Harmonic mean
814. When deviations are taken from median sum of absolute deviation of the value is_______________
A. Zero
B. Minimum
C. Maximum
D. more than zero
815. It is impossible to find ____________ if the values have same numbers in a series.
A. Median
B. mode
C. Mean
D. weighted mean
816. A distribution having two modes is called
A. Symmetrical
B. Bi modal
C. Multi modal
D. uni modal
817. If mode is greater than mean then the distribution is
A. symmetrical
B. positively skewed
C. Negatively Skewed
D. None of theseĀ
818. The relation between mean, median and mode for a unimodal distribution is _________________
A. mean >median>mode
B. mean<median<mode
C. Mean=median=mode
D. mean<median>mode
819. Which mean is use for calculating average rate of debt growth for a company ?
A. Arithmetic mean
B. Weighted mean
C. Harmonic mean
D. Geometric mean
820. Which one from the following average is suitable for qualitative data?
A. Median
B. mode
C. Mean
D. weighted mean