Posted by RAMATU on Monday, March 15, 2010 at 7:37pm.
A BAG CONTAINS 3 RED CHIPS, 2 BLUE CHIPS AND 1 WHITE CHIP. IF 2 CHIPS ARE CHOSEN FROM THE BAG WITHOUT REPLACEMENT DETERMINE THE PROBABILITY THAT THEY ARE OF DIFFERENT COLORS

PRE CAL. JOURNAL  MathMate, Monday, March 15, 2010 at 9:41pm
You can calculate the different combinations to get different colours, but you can also calculate the probability P of getting the same colours, and the required probability is 1P.
get two reds: (3/6)*(2/5)=1/5
get two blues: (2/6)*(1/6)=1/18
Probability of getting two reds or two blues: (1/5)+(1/18)=23/90
Probability of not getting two of the same colour = 1(23/90)=67/90
Answer This Question
Related Questions
 probability  A bag contains 3 red chips, 2 blue chips, and 1 white chip. If 2 ...
 algebra  a bag contains 4 red chips, 2 blue chips and 5 green chips. A chip is ...
 Statistics  Suppose a bag contains 7 red chips, 8 black chips, and 3 green ...
 MATH Prob.  a bag contains 7 red chips and 10 blue chips. Two chips are ...
 Math  20. A bag contains 7 red chips and 10 blue chips. Two chips are selected ...
 math/probability  A bag contains 7 red chips and 10 blue chips. Two chips are ...
 Elementary math College  A bag contains 7 red chips and 9 blue chips. Two chips...
 college math  a bag contains 7 red chips and 9 blue chips. Two chips are ...
 PROBABILITY MATH  A bag contains 10 red chips and 12 blue chips. Two chips are ...
 algebra  if i had 1bag containing 6red chips & 5 yellow chips. another bag ...
More Related Questions