Suppose you choose a marble from a bag containing 4 red marbles, 2 white marbles, and 3 blue marbles. You return the first marble to the bag and then choose again. Find P(red and blue).
A. 4/3

B. 2/3

C. 7/9

D. 4/27

Question

Suppose you choose a marble from a bag containing 4 red marbles, 2 white marbles, and 3 blue marbles. You return the first marble to the bag and then choose again. Find P(red and blue).
A. 4/3	

B. 2/3	

C. 7/9	

D. 4/27

mertsj · Answer

$$\frac{4}{9}\times\frac{3}{9}=\frac{4}{27}$$

ganpat · Answer

i guess, it should be 7/9.. 

Probability of getting white marble = 2/9..
probability of getting red and blue marble = 1- 2/9...

mertsj · Answer

Stop being ridiculous.

ganpat · Answer

excuse me..