Suppose a business records price and sales of an item each week and obtains the following information mean of X: $20 Standard deviation of X : $2 Mean of Y: 20,000 , Standard deviation of Y: 1000 Correlation r= -0.8 Calculate the values A, B,C and D (1 mark) Future value of X Z score of X Predicted y =average of y+ r*(Z score of X)* standard deviation of y $18 A B $20 O 20,000 $24 C D ow working. If the working is correct but the answer is wrong