Solve clearly

Blackjack Earnings and Cigs You are interested in evaluating whether or not smoking cigarettes improves your performance at the blackjack table. You collect the following data: Calculate the following. Remember. the above data is sample data. A. Calculate Covariance between Winnings and Cigs Smoked. Round to 2 decimal places. If negative. include negative sign. B. Calculate 31. Be careful, round your nal answer to 2 decimal places. Do not round while doing your variance calculations. include a negative if it is negative. C. Calculate 30. Be ca reful, round your nal answer to 2 decimal places. Do not round while doing your variance calculations. include a negative if it is negative. | D. If you observe someone earn $300 and smoke 12 cigs, calculate the residual. Use your rounded answers in part [Bland (Cl. Round your nal answer to 2 decimal places. Include negative sign if negative. _