The coefficient of variation for a population measurement with nonzero mean is given by σ/μ, where μ is the population mean and σ is the population standard deviation. what is the method of moments estimate of the coefficient of variation? prove that the coefficient of variation is invariant under rescalings of the distribution, i. e., under transformations of the form t(x) = cx for constant c > 0. it is this invariance that leads to the coefficient of variation being an appropriate measure of sampling variability in certain problems, as it is independent of the units we use for the measurement.

The equation shown below represents function f. f(x)= -2x+5 the graph shown below represents function g. which of the following statements is true? a. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is less than the y-intercept of function g. b. over the interval [2, 4], the average rate of change of f is greater than the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. c. over the interval [2, 4], the average rate of change of f is the same as the average rate of change of g. the y-intercept of function f is greater than the y-intercept of function g. d. over the interval [2, 4], the average rate of change of f is less than the average rate of change of g. the y-intercept of function f is the same as the y-intercept of function g.