SOLUTION: a bag contains 3 red and 5 blue marbles. a marble is drawn and replaced. then a marble is drawn again. find the probability that the marbles are different colors
Algebra.Com
Question 306850: a bag contains 3 red and 5 blue marbles. a marble is drawn and replaced. then a marble is drawn again. find the probability that the marbles are different colors
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
3 R-Red
5 B-Blue
8 Total
Red then Blue
P(R)=3/8
P(B)=5/8
P(R, B)=(3/8)(5/8)=15/64
.
.
.
Blue then Red
P(B)=5/8
P(R)=3/8
P(B,R)=15/64
RELATED QUESTIONS
A bag contains 5 red and 6 green marbles. what is the probability that a red marble is... (answered by Boreal,math_helper)
A bag of marbles contains 4 red marbles, 3 green marbles, 1 yellow marble, and 4 blue... (answered by edjones)
A bag contains 6 red marbles, 4 blue marbles, 7 green marbles, and 3 yellow marbles. A... (answered by rfer)
An urn contains 10 red marbles and 30 green marbles. A marble is drawn at random, but not (answered by Fombitz)
there are 8 red marbles, 2 green marbles, and 5 blue marbles in a bag. Marbles are... (answered by Fombitz)
A bag contains 5 yellow marbles, 7 black marbles, and 3 blue marbles.If a marble is drawn (answered by math_helper)
A bag contains 8 blue marbles & 5 green marbles. A marble is drawn & replaced. A second... (answered by user_dude2008)
a bag contains 15 red and 10 green marbles. a marble is drawn, replaced in the bag, then... (answered by solve_for_x)
A bag contains 8 purple marbles and 12 yellow marbles. Once a marble is drawn from the... (answered by stanbon)