163k views
5 votes
How many 8 person juries can be formed from 21 possible candidates

User Maddoxej
by
4.5k points

2 Answers

7 votes

Final answer:

20349 8 person juries can be formed from 21 possible candidates.

Step-by-step explanation:

To find the number of 8 person juries that can be formed from 21 possible candidates, we can use the combination formula. The formula for combinations is given by nCr = n! / ((n-r)! * r!), where n is the total number of candidates and r is the number of candidates needed for the jury. In this case, n = 21 and r = 8. Plugging these values into the formula, we get:

  1. nCr = 21! / ((21-8)! * 8!)
  2. = 21! / (13! * 8!)
  3. Using factorials, we simplify the expression:

nCr = (21 * 20 * 19 * 18 * 17 * 16 * 15 * 14) / (8 * 7 * 6 * 5 * 4 * 3 * 2 * 1)

After calculating this expression, we find that the number of 8 person juries that can be formed from 21 possible candidates is 20349.

User Automagic
by
4.5k points
5 votes
8 times 3 is 21 so 3 juries
User Sridarshan
by
5.4k points