801. Calculate the value of range if the values are -2, -3, -4, -5 and -6.
A. 0
B. 4
C. -4
D. -8

802. The best general purpose measure of despersion is
A. Semi-interquartile range
B. Range
C. Standard deviation
D. Mean deviation

803. On the bases of absolute deviation a measure of dispersion is_____________
A. Mean deviation
B. Coefficient of quartile deviation
C. standard deviation
D. Quartile deviation

804. flat-topped distribution is called ______
A. Dispersion
B. Platykurtic
C. Skewness
D. Kurtosis

805. When mean deviation is calculated from __________ it is minimum.
A. Mode
B. Median
C. mean
D. Harmonic mean

806. By the change of ______________ value of standard deviation changes.
A. Algebraic sign
B. Origin
C. Scale
D. none of these

807. If there are seven values each equal to a then variance is
A. 2a
B. a
C. a2
D. Zero

808. If the price of a commodity remain same for a week thenthe measure of scatterness will be ___________
A. Rs. 900
B. Zero
C. 40
D, 2

809. Peakedness of a distribution is called _____
A. Dispersion
B. Platykurtic
C. Skewness
D. Kurtosis

810. Calculation of mean deviation from a set of data id always_________
A. more than S.D
B. Equals to S.D
C. Less tha S.D
D. Negative

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