There are twelve balls in a box: four are red, four are green, and four are purple. Also, the balls of each color are numbered 1, 2, 3, 4. You will randomly select three balls from the box without replacement. Let Y1 = the number of red balls drawn, and let Y2 = the number of the balls drawn that have even numbers. Find the joint probability distribution for (Y1,Y2); display it as a table. Are Y1 and Y2 independent?