Answer :
1. 9! / ( 5! * 4! ) = (6*7*8*9)/(1*2*3*4) = 2*7*9 = 126;
2. a) [(3!/(1!*2!)]*[(6!/(4!*2!)]/126 = 5/14 = 0.35;
b) [(3!/(2!*1!)]*[(6!/(3!*3!)]/126 = 10/21 = 0.47;
2. a) [(3!/(1!*2!)]*[(6!/(4!*2!)]/126 = 5/14 = 0.35;
b) [(3!/(2!*1!)]*[(6!/(3!*3!)]/126 = 10/21 = 0.47;
Answer:
1. 9! / ( 5! * 4! ) = (6*7*8*9)/(1*2*3*4) = 2*7*9 = 126;
2. a) [(3!/(1!*2!)]*[(6!/(4!*2!)]/126 = 5/14 = 0.35;
b) [(3!/(2!*1!)]*[(6!/(3!*3!)]/126 = 10/21 = 0.47;
Step-by-step explanation: