25 students in a class. 9 spoke only english, 5 spoke only spanish, 4 spoke only russian, 4 spoke only vietnamese, and 3 spoke only hmong. find the probability that in a group of 5 chosen at random that no one speaks vietnamese or hmong.

Question

anonymous · Answer

I think it's 7x6x5x4x3x2 divided by 25^5 (total)
Cause they're total of 7 Viet + Hmong
The first one is 7, then 6, then, 5, then 4, then, 2 (the 5th one)....Idk...I forgot...T.T

anonymous · Answer

the correct answer is 0.1613 but i cant get there.

anonymous · Answer

18/25 * 17/24 * 16/23 * 15/22 * 14/21