Question 1025898
So find the probability that you get BBR.
{{{P=(B/(R+B))(B/(R+B))(R/(R+B))=(B^2*R)/(B+R)^3}}}
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BBBR
{{{P=(B/(R+B))(B/(R+B))(B/(R+B))(R/(R+B))=(B^3*R)/(B+R)^4}}}