"Charley Chicken" and "Bradley Bee" are brands of canned tuna. During a week a certain amount of advertising appears for these products. There may be no advertising, one form of advertising (newspaper coupon), or two forms of advertising (coupon and a special store display). Let C denote the level of advertising for Charley Chicken. It can take the values c=0,1 or 2 . Let B denote the level of advertising for Bradley Bee; B can take the values b=0,1 or 2 . Suppose the following table represents the joint probability distribution of the advertising levels for these two brands of canned tuna. Find the covariance between the advertising strategies of these two companies. Find the covariance between the advertising strategies of these two companies. a) 28 b) 2.8 c) 0.28 d) 0.028 e) 0.0028