A closet contains four pairs of shoes. If four shoes are chosen at random, what is the probability that the chosen shoes do not contain a pair?
Step 1 of 2 :
A cupboard contains four pairs of shoes.
If four shoes chosen at random ,then the claim is to find the probability that the shoes do not contain a pair.
We know that 4 pair of shoes contains 8 shoes.
The number of combinations is =
Where, n= 8 and r = 4