SOLUTION: How do I draw a tree to show? (in a jar there are 2 red balls, 3 white balls and 1 green ball). 1.)What is the probability that a red ball will be drawn at 1st pick? 2.)Wh

Question 132571: How do I draw a tree to show?
(in a jar there are 2 red balls, 3 white balls and 1 green ball).
1.)What is the probability that a red ball will be drawn at 1st pick?
2.)What is the probability that a white ball will be drawn at 2nd pick?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
How do I draw a tree to show?
(in a jar there are 2 red balls, 3 white balls and 1 green ball).
1.)What is the probability that a red ball will be drawn at 1st pick?
P(red on 1st pick) = 2/6 = 1/3
-----------------------
2.)What is the probability that a white ball will be drawn at 2nd pick?
P(white on 2nd) = P(white|red) + P(white|white} + P(white|green)
= (1/3)(3/5) + (3/6)*2/5) + (1/6)*(3/5)
= 1/5 + 1/5 + 1/10
= 5/10 = 1/2
=================
Cheers,
Stan H.

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