Alikayy Alikayy

11-10-2014
Mathematics

contestada

For an office job I need to pick 3 candidates put of a pool of 5. How many choices do I have?

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mariamikayla mariamikayla

11-10-2014

[tex]C_5^3= \frac{5!}{3!(5-3)!}= \frac{1*2*3*4*5}{1*2*3*2!}= \\\\ =\frac{4*5}{1*2}= 2*5 \to\boxed{10-choices}[/tex]

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