53p3

解答

53 p 3

140556

求解步骤

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

代入

n = 53, r = 3

= \frac{53 !}{( 53 - 3 ) !}

\frac{53 !}{( 53 - 3 ) !} = 140556

= 140556

1000 C 10

m o d e 14, 13, 15, 14, 15, 11, 13, 16, 12, 14, 14, 15, 9, 0, 10, 11, 12

m e d ian 1, 3, 3, 8

m o d e 69, 75, 75, 76, 76, 76, 76, 77, 78, 78, 79, 80, 81, 82, 83, 84, 84

a r i t hm e t i c m e an 13, 10, 16, 16, 20, 31, 5, 22, 20, 5, 1, 15, 16, 29, 29