A drawer conatins 4 red socks and 5 blue socks. 3 socks are drawn. determine the probability that: (a) exactly 2 socks are selected (b) atleast 2 red socks are drawn

Question

anonymous · Answer

a) Exactly two socks. Two socks of what color?

anonymous · Answer

any two socks

anonymous · Answer

Can someone help me with this question?

anonymous · Answer

@mathstudent55 can you please help me with this question?

anonymous · Answer

@kropot72  can you please help me with this question?

anonymous · Answer

@ryan123345  can you help me with this question?

kropot72 · Answer

Given that 3 socks are drawn, the first part of the question could be asking the probability that there is a pair of the same color that can be selected from the three.

kropot72 · Answer

$$P(2\ red)=\frac{4C2\times 5C1}{9C3}$$
$$P(2\ blue)=\frac{5C2\times 4C1}{9C3}$$
To find the probability that there is a pair of the same color that can be selected from the three add the results:
P(2 red) + P(2 blue) = ?