Probability questions

Statistics
Tutor: None Selected Time limit: 1 Day

a bicycle shop owner has 12 bikes in the room. The owner wishes to select 5 of them to display at a show. How many different ways can a group of 5 be selected?

May 12th, 2015

nCr= Cnr = (nr) =n!/r!(n−r)

12C5=

C(n,r) =
C(12,5) =
12! / (5! (12 - 5)!) =792

May 12th, 2015

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May 12th, 2015
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