SOLUTION: A bag contains 5 red marbles, 10 white marbles, and 8 blue marbles. You draw 5 marbles out at random, without replacement. What is the probability that all the marbles are red?

Algebra ->  Probability-and-statistics -> SOLUTION: A bag contains 5 red marbles, 10 white marbles, and 8 blue marbles. You draw 5 marbles out at random, without replacement. What is the probability that all the marbles are red?       Log On


   

Question 1174100: A bag contains 5 red marbles, 10 white marbles, and 8 blue marbles. You draw 5 marbles out at random, without replacement. What is the probability that all the marbles are red?
The probability that all the marbles are red is
.
What is the probability that exactly two of the marbles are red?
The probability that exactly two of the marbles are red is
.
What is the probability that none of the marbles are red?
The probability of picking no red marbles is
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!

 Hi,
    23 Marbles: 5R and 10W and 8B

 You draw 5 marbles out at random, without replacement:  23C5 Total ways this can be done

The probability that all the marbles are red is:  5C5/23C5

The probability that exactly two of the marbles are red is: (5C2)(18C3)/23C5

The probability of picking no red marbles is:  (18C5)/(23C5)

Wish You the Best in your Studies.