This function takes an iterable and returns each element of that iterable with a count for how many times it appeared. It could be a list of numbers, a string, or anything else that can be iterated over (used in a for loop). This function creates all permutations of length n for whatever you put in it. This function is very useful for finding the number of combinations in a set and lots more. For example, if you gave it the number 10, it would calculate 10 * 9 * 8*… *1 and give you the number 3,628,800. This function returns the factorial of the number that you give it. ![]() ![]() ![]() This allows you to use all the tools in each of these packages in python without calling them, such as typing factorial(~) instead of math.factorial(~). You skipping all the messy statistical mathīefore running any of these tests, you must run:
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