A bag of marbles has 4 green, 2 red, 5 yellow, 1 brown and 7 blue marbles. What is the probability of picking a green marble, replacing it and then picking a brown marble?

Question

A bag of marbles has 4 green, 2 red, 5 yellow, 1 brown and 7 blue marbles.  What is the probability of picking a green marble, replacing it and then picking a brown marble?

anonymous · Answer

we the probability of picking a green marble is 4 out of 19
The probability of picking a brown marble is 1 / 19.
but thats all I know for sure

anonymous · Answer

I knew that part, thank you.  Just not sure what to do about the "replacing" part and then the additional marble.