Question 68170: Becky has a box of markers that contains 1 blue, 4 black, 2 red, and 3 green markers. Becky picks one marker from the box, replaces it, and pickes another marker. What is the probability that she will pick 2 red markers?
A 1/25
B 1/10
C 1/5
D 1/2
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! Becky has a box of markers that contains 1 blue, 4 black, 2 red, and 3 green markers. Becky picks one marker from the box, replaces it, and pickes another marker. What is the probability that she will pick 2 red markers?
---------
The selections are independent because she replaced her 1st pick.
So, Prob (rr)= P(r)*P(r)=(2/10)^2=1/25
Cheers,
Stan H.
|
|
|
