How many different groups of size 2 can be selected from the items a, b, c?

Sagot :

[tex]\huge\colorbox{blueviolet}{ANSWER}[/tex]

Total number of groups that can be formed is given by the formula

[tex] {c}^{n} = \frac{n!}{r!(n - r)! }(1!) [/tex]

REMEMBER

To calculate the probability of a combination, you will need to consider the number of favorable outcomes over the number of total outcomes. Combinations are used to calculate events where order does not matter. In this lesson, we will explore the connection between these two essential topics.