-(Binomial)
2. Use the binomial coefficient to determine the number of ways out of a hospital staff of 5 nurses, 2 nurses can be chosen to service the maternity ward.
The way solve this question is 1x2x3x4x5 / (1x2x3) (1x2)
That’s mean 120/12
The Answer is 10
3. In a clinical trial, 10 subjects were to be divided equally between the experimental drug and the placebo. How many ways can they be assigned?
The way to solve this question is 1x2x3x4x5x6x8x9x10/ (1x2x3x4x5) (1x2x3x4x5)
That’s mean 3,628,800/14,400
The answer is 252
4. Xavier Memorial