Experiment 1: A dresser drawer contains one pair of socks with each of the following colors: blue, brown, red, white and black. Each pair is folded together in a matching set. You reach into the sock drawer and choose a pair of socks without looking. You replace this pair and then choose another pair of socks. What is the probability that you will choose the red pair of socks both times?
Probabilities:
P(red) = 1
5
P(red and red) = P(red) · P(red)
= 1 · 1
5 5
= 1
25