# probability

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A bag contains 3 red chips, 2 blue chips, and 1 white chip. If 2 chips are chosen from the bag (without replaceent), determine the probability that they are of different colors.

• probability -

ways to get two different colors
rb
rw
bw
br
wr
wb

add the probability of each of these.

I will do the first two:
Pr(rb)=3/6*2/5
Pr(rw)=3/6*1/5

• probability -

ok but how do i find the final probability?
i see how i can get the probability of a certain combination, but i don't understand how i can find that end probability.

• probability -

never mind i got it
thank you so much bobpursley!

• probability -

A bag contains 4 purple, 3 blue and 2 red cubes. Select 3 cubes and stack on table next to the bag. What is probability of the cubes being red, purple then blue

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