SOLUTION: suppose a basket contains 100 red balls and 50 white balls, if two balls are drawn one after the other without replacement at random. what is the probability that they will both of

Algebra.Com
Question 749424: suppose a basket contains 100 red balls and 50 white balls, if two balls are drawn one after the other without replacement at random. what is the probability that they will both of the same colour
Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
suppose a basket contains 100 red balls and 50 white balls, if two balls are drawn one after the other without replacement at random. what is the probability that they will both of the same colour
--------
# of ways to succeed: 100C2 + 50C2 = 6175
----
# of random pairs: 150C2 = 11,175
---
P(2red or 2white) = 6175/11175 = 0.5526
===========================================
Cheers,
Stan H.
==================

RELATED QUESTIONS

suppose a basket contains 100 red balls and 50 white balls, if two balls are drawn one... (answered by lynnlo)
A bag contains 5 red balls and 3 blue balls. If two balls are drawn at random without... (answered by ikleyn,greenestamps)
A box contains 20 balls out which 7 are white balls, 5 are black balls, 6 are red balls... (answered by Boreal)
From a bag containing 4 white and 6 black balls, two balls are drawn at random. If the... (answered by math_helper)
a bag contains 6 white,4 red and 4 black balls. find the probability of getting at least... (answered by Boreal)
A bag contains 7 white 5 black and 4 red balls. If 2 balls are drawn at random. What is (answered by Fombitz)
A box contains three blue balls and three white balls. if two balls are drawn one at a... (answered by stanbon)
Two balls are drawn (without replacement) from an urn that contains four balls, five... (answered by Nate)
A box contains 20 balls out which 7 are white balls, 5 are black balls, 6 are red balls (answered by Edwin McCravy,ikleyn)