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Coefficient of variation

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1) Suppose we have a data set with a mean of 4 and variance of 64. if we add 2 to every observation, then the coefficient of variation will: a) increase b) decrease c) Stay the same d)none

2) The sum of 5 observations is 10, the variance of these 5 observations is 36, which of the following is true: a) The standard deviation is 9 b) The mean is 2.5 c) The coefficent of variation is 3. d) None of the above

Reference no: EM131981574

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