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26-10-2020
Mathematics

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

Respuesta :

26-10-2020

Answer:

20

Step-by-step explanation:

n!/(n-r)! first plug in numbers

n= 5 r=2

5!/(5-2)!

5!=120. 5×4×3×2×1= 120

/ (5-2)= 3

3!=6. 3×2×1= 6

120/6= 20

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