A bag of contains 8 pink marbles, 5 green marbles and 10 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 exactly in reduced fraction form, separated by a comma.

Question

amistre64 · Answer

hitting the enter key would help make this readable:

A bag of contains:

   8 pink marbles, 
   5 green marbles 
 10 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 exactly in reduced fraction form, separated by a comma.

amistre64 · Answer

23 chances in all; and 8 of those chances are pink

P(pink) = 8/23

amistre64 · Answer

P(pink and green) = P(pink) * P(green)

amistre64 · Answer

$$\frac{8}{23}*\frac{5}{23}$$

amistre64 · Answer

40
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529