Question

Suppose you choose a marble from a bag containing 2 red marbles, 5 white marbles, and 3 blue marbles. You return the first marble to the bag and then choose again. Find P(red and blue).

Answer 1

2 : red
5 : white
+ 3 : blue
-------
10 : total

P(red)=1/5
P(white)=1/2
P(blue)=3/10

P(red and blue)=P(red)P(blue)=(1/5)(3/10)=3/50

Answer 2

are you looking for the P. for one red and one blue?