Under what circumstances is it necessary to use the coefficient of variation to compare relative variability between two or more distributions?
A) When the means of the distributions are equal
B) When the means of the distributions are not equal
C) When the standard deviations of the distributions are not equal
D) When the standard deviations of the distributions are equal
Question 2
A joint probability distribution for discrete random variables X and Y is denoted by ________.
A) P(Xi, Yi) = Xi Yi
B) P(X = x, Y = y) = f(x, y)
C) P(X > Y) = f(x, y)
D) P(j(x), j(y))
Average winter rainfall and variation in rainfall among sites inhabited by Suromalus ater
Variation in the rate of evolution as a function of the strength of selection, assuming genetic drif
Apparent motion of Alpha Centauri relative to Beta Centauri
Two normal frequency distributions with the same mean but different amounts of variation
An example of continuous variation: biology students organized according to height.
Continuous Variation in Height (Males)