Question

If you have 10 red, 10 blue, 10 orange and 10 black socks in a drawer, how many socks must you pull out of the drawer (assume it is dark and you cannot see the colors) to guarantee that you get two orange socks?

Answer 1

Explanation:

The probability of u choosing two orange socks from the sock drawer WITHOUT REPLACEMENT:

= P(the first one is Orange) * P(the second one is Orange)

= 10/40 * 9/39 = 3/52.