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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

Popular Examples

2 P 2

range of 58,84,73,1,54,26,85 range

58, 84, 73, 1, 54, 26, 85

range of 4,16,64,144 range

4, 16, 64, 144

arithmeticmean of 12.5,12.7,14.9,11.3,11.7,10.9 average

12.5, 12.7, 14.9, 11.3, 11.7, 10.9

median of 3,4,5,7,7,7,9 median

3, 4, 5, 7, 7, 7, 9

Frequently Asked Questions (FAQ)

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