Question 874845
Q:
Suppose a box contains 9 green, 2 red, 8 yellow, and 4 blue marbles. Four marbles are drawn from the box at the same time. What is the probability that all four marbles are the same color?
A:
probability = {{{(matrix(2,1,9,4))(matrix(2,1,2,0))(matrix(2,1,8,0))(matrix(2,1,4,0))/((matrix(2,1,23,4)))}}} + {{{(matrix(2,1,9,0))(matrix(2,1,2,0))(matrix(2,1,8,4))(matrix(2,1,4,0))/((matrix(2,1,23,4)))}}} + {{{(matrix(2,1,9,0))(matrix(2,1,2,0))(matrix(2,1,8,0))(matrix(2,1,4,4))/((matrix(2,1,23,4)))}}} = 197/8855 = {{{highlight(0.0222473)}}}