Posted by **jenny** on Wednesday, May 23, 2012 at 2:58pm.

Jeremy and Noor are playing a game where they each draw a marble from a bag, and whoever draws the marble worth the most points wins. Red marbles are worth 1 point, green marbles are worth 2 points, blue marbles are worth 3 points, and white marbles are worth 10 points. There are 4 of each type of marble in the bag. Jeremy draws a blue marble from the bag and does not replace it.

Part A: If Noor draws a marble next, what is the expected value of Noorâ€™s marble? Show your work.

Part B: Does this mean that Noor is more likely to win than to lose? Explain your answer.

- algebra 2 -
**MathMate**, Wednesday, May 23, 2012 at 3:18pm
What's left in the bag:

4R, 4G, 3B, 4W = 15 marbles total

Expected value

= ∑ x P(x)

=(4*1+4*2+3*3+4*10)/15

=4.07

- algebra 2 -
**jenny**, Wednesday, May 23, 2012 at 4:21pm
Thank you!!!

- algebra 2 :) -
**MathMate**, Wednesday, May 23, 2012 at 4:26pm
You're welcome!

## Answer This Question

## Related Questions

- math - A bag has 4 red marbles, 4 blue marbles, and 2 green marbles. Jessie ...
- Math - A bag contains nine red marbles, four green marbles, three blue marbles, ...
- Algebra - A bag of marbles contains 3 yellow marble, 3 red marbles, and 5 green ...
- math - You draw 2 marbles from a bag containing 3 blue marbles, 2 green marbles...
- Math - A bag of marbles contains only green and red marbles. All of the marbles ...
- Marbles - A bag contains 10 green marbles, 9 white marbles, 7 red marbles. If ...
- math - a box contains seven red marbles, five green marbles & eight blue marble...
- algebra - Jared has a bag that contains 8 blue marbles, 6 red marbles, and 10 ...
- pre-algebra - a bag contains 5 green marbles 2 white marbles 8 blue marbles 9 ...
- MATH - You have a bag of marbles containing 13 red marbles, 8 green marbles, 7 ...

More Related Questions