SOLUTION: suppose u have a bag filled with 50 marbles,15 of which are green.what is the probability of choosing exactly 3 green marbles if a total of 10 marbles are selected?

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: suppose u have a bag filled with 50 marbles,15 of which are green.what is the probability of choosing exactly 3 green marbles if a total of 10 marbles are selected?      Log On


   

Question 1191991: suppose u have a bag filled with 50 marbles,15 of which are green.what is the probability of choosing exactly 3 green marbles if a total of 10 marbles are selected?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
There are 50C10 ways to choose 10 marbles.
15C3 are ways to choose exactly 3 marbles.
35C7 are the ways to choose the others.
the probability of selecting exactly 3 green is 15C3*35C7/50C10=0.2979.