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You are reading an older version of this FlexBook® textbook: CK-12 Basic Probability and Statistics Concepts Go to the latest version.

2.6: Combination Problems

Difficulty Level: Basic Created by: CK-12
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Vocabulary

combination notation

combination notation

Combination notation has the forms nCr and c(n, r) where n is the number of different units to choose from and r is the number of units in each group.
combinatorics

combinatorics

Combinatorics is the study of permutations and combinations.
n value

n value

When calculating permutations with the TI calculator, the n value is the number of objects from which you are choosing.
permutation notation

permutation notation

Permutation notation is the form  nPr  or P(n, r), and indicates the number of ways that n objects can be ordered into groups of r items each.
TI-84

TI-84

The TI-84 calculator is a graphing calculator produced by Texas Instruments and is considered an “industry standard” for more advanced calculations.

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