Bag Black
Bag Black
What percentage chance of getting the black marble in the bag?
You have a bag of 100 balls - 5 are black, 95 are red .. What is the percentage chance of getting the bag of black marble? If you put the marble back after each attempt, what are the potential to eliminate a black marble after 20 trials? Show forumla that you use to solve this problem .. This is not a problem at school ..
5% for the first attempt 64.1514078% for the 20 countries. 1. 5 / 100 = 0.05 = 5% 2. 1 - (0.95 ^ 20) = 0.641514078 = 64.1514078%
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