Tuesday

September 23, 2014

September 23, 2014

Posted by **RAMATU** on Monday, March 15, 2010 at 7:37pm.

- PRE CAL. JOURNAL -
**MathMate**, Monday, March 15, 2010 at 9:41pmYou 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 1-P.

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 ...