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Use the permutation formula below to find the number of outcomes when n = 5 and r= 2. n! (n,r)!​
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5 votes
Use the permutation formula below to find the number of outcomes when n = 5

and r= 2.
n!
(n,r)!​

User C B
by
4.3k points

1 Answer

2 votes

Answer:

20.

Explanation:

5! / (n - r)!

= (5*4*3*2*1) / 3*2*1

= 5*4

= 20.

User Eli Barzilay
by
4.3k points
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