SOLUTION: An urn contains 8 balls identical in every respect except color. There are 4 blue balls, 3 red ones and 1 white one. If you draw two balls without replacing the first one, wha

Question 575508: An urn contains 8 balls identical in every respect except color. There are
4 blue balls, 3 red ones and 1 white one. If you draw two balls without replacing the first one, what is the probability that the first ball is red and the second is white?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
4 blue balls, 3 red ones and 1 white one. If you draw two balls without replacing the first one, what is the probability that the first ball is red and the second is white?
-------------
# of ways to draw red and then white: 3*1 = 3
---
# of random pairs: 8C2 = 8*7/1*2 = 28
---
P(red/white) = 3/28
=============================
Cheers,
Stan h.
RELATED QUESTIONS
An urn contains 15 balls identical in every respect except color. There are 4 red... (answered by ewatrrr)

an urn contains 12 balls identical in every respect except color. there are 3 red balls,... (answered by checkley77)

An urn contains 8 balls identical in every way except color. There are 4 blue balls, 3... (answered by ewatrrr)

An urn contains 8 balls identical in every aspect except color. There is 1 red ball, 2... (answered by stanbon)

I know that this question has been asked but I have a question about the 2 blue balls. Do (answered by solver91311)

An urn contains 8 white balls and 4 red balls. In how many ways can 4 balls be drawn if... (answered by stanbon)

An urn contains red, blue, and yellow balls. There are three times as many red balls as... (answered by jorel1380)

There are eleven balls in an urn. They are identical except for color. Five are red, five (answered by lynnlo)

An urn has 21 balls that are identical except that 5 are white, 9 are red, and 7 are... (answered by ikleyn,greenestamps)