Finds Combinations Of C(6,3) | Tiger Algebra Solver

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Enter an equation or problemClear Solve × Camera input is not recognized!axy/|abs|( )789*456-%123+<>0,.=abcabcdefghijklmnopqrstuvwxyz␣.Solution - Combinations without repetitionFinal Result Steps Terms and topics 20 20See steps Learn more with Tiger Try this:

Other Ways to Solve

Combinations without repetition

• Graphing ordered pairs on a coordinate plane

Step-by-step explanation

1. Find the number of terms in the set

n represents the total number of items in the set: c(n,k) c(6,3) n=6

2. Find the number of items selected from the set

k represents the number of items selected from the set: c(n,k) c(6,3) k=3

3. Calculate the combinations using the formula

Plug n (n=6) and k (k=3) into the combination formula: C(n,k)=n!k!(n-k)!

4 additional steps

C(6,3)=6!3!(6-3)!

C(6,3)=6!3!·3!

C(6,3)=6·5·4·3!3!·3!

C(6,3)=6·5·43!

C(6,3)=6·5·43·2·1

C(6,3)=20

There are 20 ways that 3 items chosen from a set of 6 can be combined.

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Combinations and permutations

If you have 2 types of crust, 4 types of toppings, and 3 types of cheese, how many different pizza combinations can you make? If there are 8 swimmers in a race, how many different sets of 1st, 2nd, and 3rd place winners could there be? What are your chances of winning the lottery? All of these questions can be answered using two of the most fundamental concepts in probability: combinations and permutations. Though these concepts are very similar, probability theory holds that they have some important differences. Both combinations and permutations are used to calculate the number of possible combinations of things. The most important difference between the two, however, is that combinations deal with arrangements in which the order of the items being arranged does not matter—such as combinations of pizza toppings—while permutations deal with arrangements in which the order the items being arranged does matter—such as setting the combination to a combination lock, which should really be called a permutation lock because the order of the input matters.What these two concepts have in common, is that they both help us understand the relationships between sets and the items or subsets that make up those sets. As the examples above illustrate, this can be used to better understand many different types of situations.

Terms and topics

• Combinations and Permutations

Related links

• Combinations and Permutations | Math Is Fun
• Intro to combinations | Khan academy

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