The following are the earnings on investment received by two investors A and B in $ ('000'). A=?

... 3484, 4572, 4124, 3682, 5624, 4388, 3680, 4308. B= 487, 508, 620, 382, 408, 266, 186, 218. a) calculate the central tendencies and comments on the distributions. b) by using the coefficient of variation, which investment is more consistent? Explains your answer