A bag has five red marbles, six blue marbles, and four black marbles. What is the probability of picking a blue marble, replacing it, and then picking a black marble?

Question

anonymous · Answer

ooh I love these

anonymous · Answer

ok so there are 15 marbles total

anonymous · Answer

so I believe that it would be 5/15 for picking blue

directrix · Answer

@satellite73 has answered a very similar question here. Take a look at the link: http://openstudy.com/updates/50c0e343e4b069388b55f835 @iharris8 @GingaTheNinja

directrix · Answer

After you have studied Sat's solution, do you follow that yours will be (6/15) * (4/15) ?

@iharris8

anonymous · Answer

yes