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Popular >

7 choose 2

Solution

7c2

Solution

21

Solution steps

= \frac{n !}{r ! ( n - r ) !}

Plug in

n = 7, r = 2

= \frac{7 !}{2 ! ( 7 - 2 ) !}

\frac{7 !}{2 ! ( 7 - 2 ) !} = 21

= 21

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8 n C r 4

std of 12,6,7,3,15,10,18,5 standard deviation

12, 6, 7, 3, 15, 10, 18, 5

10 c 3

std of 340,75,123,259,151 standard deviation

340, 75, 123, 259, 151

Frequently Asked Questions (FAQ)

What is 7 choose 2 ?
The answer to 7 choose 2 is 21