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How many combinations with repetition are allowed if n = 7 and r = 2?
a. 21
b. 14
c. 49
d. 28​


Sagot :

N=7 r=2
So 7x2=14
7x3=21
7x4=28



So 3

The combinations with repetition are allowed is equal to 28.

Here we have N=7 r=2

We have to determine the combination of repetition

What is the combination?

A combination is a selection of items from a set that has distinct members, such that the order of selection does not matter.

The combinations with repetition are allowed if n = 7 and r = 2

So 7x2=14

7x3=21

7x4=28

Therefore the combinations with repetition are allowed is equal to 28.

To learn more about the combination visit:

https://brainly.com/question/26153631

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