SOLUTION: The mathmatics club at a certain university is composed of 15 undergraduate and 6 graduate students. Three students from the club were selected, and each was asked to teach a clas

Question 902252: The mathmatics club at a certain university is composed of 15 undergraduate and 6 graduate students. Three students from the club were selected, and each was asked to teach a class at a high school.
A) how many distinct groups of 3 students can be formed?
B) find the probability that the selected group has exactly two graduate students.
C) find the probability that the selected group has at least one undergraduate student.
Could someone help me with this Qs please
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
A) how many distinct groups of 3 students can be formed? 21C3
B) find the probability that the selected group has exactly two graduate students.
P =
C) find the probability that the selected group has at least one undergraduate student.
P = 1 - P(no UG) = 1 -

RELATED QUESTIONS
At a well known university, � of the undergraduate students commute and 1/3 of the... (answered by ankor@dixie-net.com)

Commuting students. At a well-known university, 1/4 of the undergraduate students... (answered by mukhopadhyay)

Commuting students. At a well-known university, 1/4 of the undergraduate students... (answered by Mathtut)

Commuting students. At a well-known university, 1/4 of the undergraduate students... (answered by ankor@dixie-net.com)

Commuting students. At a well-known university, � of the undergraduate students... (answered by ankor@dixie-net.com)

Commuting students. At a well know university, � of the undergraduate students commute,... (answered by ankor@dixie-net.com)

At a well-known university, 1/4 of the undergraduate students commute, and 1/3 of the... (answered by ankor@dixie-net.com)

At a well-known university,1/4 of the undergraduate students commute, and 1/3 of the... (answered by ankor@dixie-net.com)