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Raina places the following balls into a bag.  She then draws three balls out of the bag, one at a time, without replacement.  What is the probability that the colors of the balls alternate?

 

There are 3 orange balls and 2 purple balls.

 Apr 10, 2024
 #1
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OPO  = (3/5)(2/4)(2/3)  = 1/5

 

POP  = (2/5)(3/4)(1/3)  =  1/10

 

1/5 + 1/10  =   3 / 10

 

cool cool cool

 Apr 10, 2024

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