Permutations, Combinations, & Set Theory

Permutations, Combinations, & Set Theory

Assessment

Flashcard

Mathematics

10th Grade

Practice Problem

Hard

Created by

Wayground Content

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16 questions

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1.

FLASHCARD QUESTION

Front

What is a permutation?

Back

A permutation is an arrangement of objects in a specific order. The order matters in permutations.

2.

FLASHCARD QUESTION

Front

What is a combination?

Back

A combination is a selection of objects where the order does not matter. It is used when choosing items from a larger set.

3.

FLASHCARD QUESTION

Front

What is the formula for permutations of n items taken r at a time?

Back

The formula is nPr = n! / (n - r)!.

4.

FLASHCARD QUESTION

Front

What is the formula for combinations of n items taken r at a time?

Back

The formula is nCr = n! / (r! * (n - r)!).

5.

FLASHCARD QUESTION

Front

Define the universal set.

Back

The universal set is the set that contains all possible elements for a particular discussion or problem.

6.

FLASHCARD QUESTION

Front

What is the complement of a set A?

Back

The complement of a set A, denoted A', is the set of all elements in the universal set that are not in A.

7.

FLASHCARD QUESTION

Front

If U = {1, 2, 3, 4, 5} and A = {2, 3}, what is A'?

Back

A' = {1, 4, 5}.

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