need the procedure for this problem too

4. (38 points) A tobacco company produces blends of tobacco, with each blend containing various proportions of Turkish, domestic, and other tobaccos. The proportions of Turkish and domestic in a blend are random variables with joint density function (X =ankish and Y=domestic) 24x3; 05-1393 law+ys 1 0 elsewhere ay) ={ (a) (8 points) Find the marginal density function for the proportion of the Turkish tobacco 90$)- (b) (8 points) Find the marginal density function for the proportion of the domestic tobacco My). (c) (6 points) Find the probability that in a given box that domestic tobacco accounts for over half the blend (Find my > 9). (d) (8 points) Find the probability that the proportion of domestic tobacco is less than 1/ 4 if it is known that the blend contains 1/3 domestic tobacco (Find P(Y