A box contains pairs of socks of two colours (black and white). I have picked out a white sock. I pick out one more with my eyes closed. What is the probability that it will make a pair?
It can be observed that while closing the eyes, one can draw either a black sock or a white sock. Therefore, there is one favourable outcomes that is only one white ball as question is asking that you have to find the probability of making pairs out of total 3 socks available .
Probability =
Probability (a pair of white socks will be formed) =