SOLUTION: A bottle of sweets contains 13 red sweets, 13 blue sweets, 13 green sweets and 13 yellow sweets. 7 sweets are selected at random. Find the probability that exactly 3 of them are re

Algebra ->  Probability-and-statistics -> SOLUTION: A bottle of sweets contains 13 red sweets, 13 blue sweets, 13 green sweets and 13 yellow sweets. 7 sweets are selected at random. Find the probability that exactly 3 of them are re      Log On


   

Question 843464: A bottle of sweets contains 13 red sweets, 13 blue sweets, 13 green sweets and 13 yellow sweets. 7 sweets are selected at random. Find the probability that exactly 3 of them are red.
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,

52 Sweets: 13 red, 13 blue, 13 green and 13 yellow 

7 selected

P(exactly 3 are red) = %2813C3%29%2839C4%29%2F%2852C7%29