SOLUTION: A bag contains 9 pink marbles, 6 green marbles and 14 brown marbles. What is the chance of drawing a pink marble? If a pink marble is drawn then placed back into the bag, and a s
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Question 266624: A bag contains 9 pink marbles, 6 green marbles and 14 brown marbles. What is the chance of drawing a pink marble? If a pink marble is drawn then placed back into the bag, and a second marble is drawn, what is the probability of drawing a green marble? Give solutions in reduced fraction form, seperated by a comma.
I know it's asking me 2 different questions, but I can't figure out what to do. Please show me all the steps so I can do my other 30 problems. I am completely lost. Answer by Edwin McCravy(20054) (Show Source):
To answer a probability all you do is make a fraction with the number of
SUCCESSFUL cases on top and the number of POSSIBLE cases on the bottom.
A bag contains 9 pink marbles, 6 green marbles and 14 brown marbles. What is the chance of drawing a pink marble?
9 pink SUCCESSFUL marbles out of (9+6+14) or 29 POSSIBLE marbles.
So that's a probability of
If a pink marble is drawn then placed back into the bag, and a second marble is drawn, what is the probability of drawing a green marble?
Drawing a pink marble and placing it right back has no effect whsoever.
So ignore that.
6 SUCCESSFUL green marbles out of (9+6+14) or 29 POSSIBLE marbles.
That's a probability of
Edwin
