The American Veterinary Association claims that the annual costXof medical care for a cat is a random variable with expected value E(X) = $125 and standard deviation SD(X) = $30, and that the annual medical costYfor a dog has expected value E(Y) = $100 and standard deviation SD(Y) = $25. Assume that medical costs for different dogs and cats are independent.

Question 1. How much more in medical costs do you expect to pay for the cat than for the dog? $ Question 2. What is the standard deviation of the difference X-Y in medical costs? O $16.58 O $5 O $10.48 O $39.05 O $55 Question 3. You're thinking of getting two cats and a dog. What is the standard deviation of the total medical cost for two cats and a dog? O $65 $39.05 O $2,425 O $49.24 O $85