Question 1111761
probability (P) of picking one red marble, and one green marble is
:
there are 11C2 ways to pick two marbles out of 11 without replacement, where 11C2 = 11!/(2! * (11-2)!) = 55 ways
:
then we have
:
(4C1 * 7C1) / 55 = 28/55 = 0.5091
: