Description : Can Coefficient of variation of a set of data to be zero?
Last Answer : Yes, if there is no variation: all the data have to have thesame value and that value must be non-zero.
Description : Is it possible for a coefficient of variation of a set of data to be zero Explain.?
Last Answer : Yes it is. If all the observations have the same non-zero valuethen the coefficient of variation will be zero.
Description : Is it possible for a coefficient of variation to be negative Explain.?
Last Answer : Of course it is! If the mean of a set of data is negative, thenthe coefficient of variation will be negative.
Description : Coefficient of variation calculated by
Last Answer : Ans. CV = (SD/Mean) x 100
Description : When V-belt drive is used a safety device, its performance is affected by a) Variation in belt tention b) Increase in coefficient of friction as belt slippage increase c) Both (a) and (b) d) None of the above
Last Answer : c) Both (a) and (b)
Description : A Statistical measure of the Degree to which two variables move together A. Coefficient of variation B. Variance C. Covariance D . Certainty equivalent
Last Answer : Answer: C
Description : A measure of risk per unit of expected return A.standard deviation B . Coefficient of variation C.Correlation coefficient D. Beta
Last Answer : Answer: B