Question 1068006
{{{P(Y)=8/(8+2+2)=8/12=2/3}}}
{{{P(R)=2/12=1/6}}}
So,
{{{P=P(Y)+P(R)}}}
{{{P=2/3+1/6}}}
{{{P=4/6+1/6}}}
{{{P=5/6}}}
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We could have also solved it backwards by finding the probability that the card is green and then finding the complement (red or yellow).
{{{P(G)=2/12=1/6}}}
So,
{{{P=1-1/6}}}
{{{P=5/6}}}