701. Which of the following is also referred to as random variable?
A. stochast
B. eliette
C. aleatory
D. None Of the above

702. It is the measure of variability, based on dividing a data set into quartiles.
A. Deviation
B. Standard Deviation
C. Range
D. Inter Quartile Range

703. Chebyshev’s inequality states that the probability of a “Six Sigma” event is less than __________.
A. 0.01
B. 0.02
C. 0.03
D. 0.04

704. If Y = aX ± b, where a and b are any two constants and a ∦ 0, then the quartile deviation of Y values is equal to:
A.a Q.D(X) + b
B.∣a∣ Q.D(X)
C.Q.D(X) – b
D.∣b∣ Q.D(X)

705. For a symmetrical distribution:
A. β1 > 0
B. β1 < 0
C. β1 = 0
D. β1= 3

706. The scatter in a series of values about the average is called:
A.Central tendency
B.Dispersion
C.Skewness
D.Symmetry

707. The measures of dispersion can never be:
A.Positive
B.Zero
C.Negative
D.Equal to 2

708. Which of the following is an absolute measure of dispersion?
A.Coefficient of variation
B.Coefficient of dispersion
C.Standard deviation
D.Coefficient of skewness

709. If the observations of a variable X are, -4, -20, -30, -44 and -36, then the value of the range will be:
A.-48
B.40
C.-40
D.48

710. If the maximum value in a series is 25 and its range is 15, the maximum value of the series is:
A.10
B.15
C.25
D.35