A sock drawer contains 16 yellow socks and 23 green socks. What's the probability of randomly pulling out 2 yellow socks in a row?

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Answer 1 · 2017-12-14T04:14:53

#120/741~=16.2%#

We have 39 socks (and I have to ask... what's with the odd number of green socks?)

We blindly reach in and want to pull out 2 yellow socks.

The probability of choosing the first of the two yellow socks is:

#16/39#

and then we grab for the second sock:

#15/38#

And so the probability of getting two yellow socks is:

#16/39xx15/38=240/1482=120/741~=16.2%#