A bag contains 10 marbles—three red, three blue, and four green. What is the probability of pulling a red marble, not replacing it, and then pulling a blue marble?
9/100
1/10
6/19
3/5

Question

A bag contains 10 marbles—three red, three blue, and four green. What is the probability of pulling a red marble, not replacing it, and then pulling a blue marble?
9/100
1/10
6/19
3/5

anonymous · Answer

To start, what do you think is the probability of pulling a red marble?

anonymous · Answer

pulling a red marble is 3/10, then pulling a blue no replacement is 3/9, the probability is (3/10)*(3/9)=9/90=1/10

anonymous · Answer

thanks that helpped alot :)

anonymous · Answer

@kittyxie1 I think it's better to help him find the answer, than giving it to him immediately. The site's goal is to help people learn.

anonymous · Answer

she did help me she explained it to me and i had another question i did the same thinh on and got it right