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Part (a) How many ways are there to put 4 balls into 3 boxes, given that the balls are not distinguished and neither are the boxes?

 

Part (b) How many ways are there to put 2 white balls and 2 black balls into 3 boxes, given that balls of the same color are indistinguishable, but the boxes are distinguishable?

 Jun 23, 2020
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(a) There are 66 ways to place the balls.

 

(b) There are 25 ways to place the balls.

 Jun 29, 2020

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