Guam" 6 A support group for people wanting to quit smoking encourages both current smokers and previous smokers (who have successfully quit smoking) to Not yet participate in group sessions. In a particular group session, one volunteer among the current smokers was asked what age they started smoking (let this age be answer\" denoted by X) and one volunteer among the previous smokers was asked what age they quit smoking (let this age be denoted by Y). Suppose that the 1 Marked out of relationship between X and Y is described by the following joint probability distribution: ' 1.00 ' 21:3)" y (Previous smoker) ' , 7 54 72 80 15 0.23 0.14 0.08 :c (Current smoker) 22 0.14 0.04 0.03 31 0.18 0.01 0.15 Calculate the expected value of X2 (Y 54). Do not include any units in your