## anonymous one year ago 8. (6pts).You have an urn that contains 12 balls, 5 yellow, 4 red, and 3 green. You randomly select two balls. a) What is the probability that you select two balls of the same color?

1. anonymous

2. anonymous

for example two yellow is $\frac{5\times 4}{12\times 11}$

3. anonymous

you go the rest?

4. anonymous

Are you sure you can add the probabilities of dependent events?

5. anonymous

i am not sure what you mean by "dependent" you can add them because they are "disjoint" two yellow or two red or two green

6. anonymous

oh I understand. Thank you