- #1
lola19991
- 6
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Dan put n different kinds of cheese in a row randomly, so that between two kinds of cheese there is a space. Then he puts a pickle on one of the n-1 spaces between the cheeses randomly. What is the probability of goat cheese and parmesan cheese (2 from n kinds of cheese) to be in the different sides of the pickle?
I know that I need to use law of total probability and define A_{i} as the pickle is found in the space number I from n-1 spaces, but I am stuck.
I know that I need to use law of total probability and define A_{i} as the pickle is found in the space number I from n-1 spaces, but I am stuck.