What are combinations in statistics?
An example of an AI chatbot conversation about combinations in statistics.
What are combinations in statistics?
Combinations in statistics refer to the selection of items from a larger set where the order does not matter. For example, choosing 2 fruits from a basket of 5.
How do you calculate combinations?
You can calculate combinations using the formula C(n, r) = n! / (r!(n - r)!), where n is the total number of items, and r is the number of items to choose.
Can you give me an example of calculating combinations?
Sure! If you want to choose 3 students from a class of 10, you would calculate it as C(10, 3) = 10! / (3!(10 - 3)!) = 120.
What’s the difference between combinations and permutations?
The main difference is that permutations consider the order of selection, while combinations do not. For example, ABC and ACB are different permutations but the same combination.
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