Question 315099
4 B, 6 G, 6 R=15 total
P(1 R)=6/15
P(2 R)=5/14
P(3 R)=4/13
P(4 R)=3/12
P(1,2,3,4 R)={{{(6/15)(5/14)(4/13)(3/12)=6/637}}}