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Probability Question?
4 statistics professors and 10 chemistry professors are available to be advisors to a student organization. The student organization needs two of the professors to be advisors. If each professor has an equal chance of being selected, what is the probability that both professors are chemistry professors?
Apparently, 10/14 x 10/14 isn't right. Where did I go wrong?
1 Answer
- 1 decade agoFavorite Answer
10/14*9/13 my dear!
When you picked up one chemistry professor, totaly 13 professors would be left, 9 of whom chemistry profs.
