Friday

December 19, 2014

December 19, 2014

Posted by **Sean** on Monday, March 21, 2011 at 10:46pm.

Looking for the expected value of X.

- Math 102 -
**drwls**, Monday, March 21, 2011 at 11:04pmProbability of 0 red = (2/6)(1/5) = 2/30

Probability of 1 red: 2*(4/6)(2/5) = 16/30

Probability of 2 red: (4/6)*(3/5) = 12/20

Expectation value = 0/30 + 16/30 + 24/30 = 4/3

**Answer this Question**

**Related Questions**

math-algebra - 7. A bag contains 5 red marbles, 6 green marbles, and 9 blue ...

Math - A bag contains 4 blue, 4 red, and 4 green marbles. Four marbles are drawn...

Math - A bag contains 4 blue, 4 red, and 4 green marbles. Four marbles are drawn...

math-algebra - 7. A bag contains 5 red marbles, 6 green marbles, and 9 blue ...

Math - A bag contains nine red marbles, four green marbles, three blue marbles, ...

math - A bag contains red, blue, and orange marbles. If the probability of ...

Probability/Statistics - 1)Two marbles are chosen at random from a bag ...

math - A bag contains x marbles. Half of the marbles are blue. Four less than ...

probability - George has a bag of marbles. Inside the bag are 5 red marbles, 3 ...

algebra2/ Trigonometry - A bag contains 24 green marbles, 22 blue marbles, 14 ...