At a spelling bee, there are 5 students competing. How many top-2 rankings are possible?
Question
Solution 1
To solve this problem, we need to use the concept of permutations. A permutation is an arrangement of objects in a specific order. The order of arrangement of the object is very important. The number of permutations of n objects taken r at a time is given by:
P(n, r) = n! / (n-r)!
where n! denotes Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study prob
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