SOLUTION: A bag of marbles has 5 green, 2 yellow, 8 red, and 3 purple marbles. What is the probability of picking a purple marble, not replacing it, and then picking another purple marble?

Algebra ->  Probability-and-statistics -> SOLUTION: A bag of marbles has 5 green, 2 yellow, 8 red, and 3 purple marbles. What is the probability of picking a purple marble, not replacing it, and then picking another purple marble?       Log On


   

Question 323960: A bag of marbles has 5 green, 2 yellow, 8 red, and 3 purple marbles. What is the probability of picking a purple marble, not replacing it, and then picking another purple marble?
My Choices Are:
28/153
1/51
20/153
8/153
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
5 Green
2 Yellow
8 Red
3 Purple
18 total
.
.
.
P(1st Purple)=3%2F18=1%2F6
w/o replacement,
P(2nd Purple)=%283-1%29%2F%2818-1%29=2%2F17
P(both Purple)=%281%2F6%29%282%2F17%29=1%2F51