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<p>[QUOTE=&quot;KBBPLL, post: 26556181, member: 104064&quot;]Hmm, is something wrong with your math or logic? It seems odd that your calculation says that on average you would get back almost twice as many quarters as dimes. My brain doesn&#039;t work as well as it used to. But for every .25 multiple of change back, you could get 0, 1, or 2 dimes back. 0.00-0.24 you get 0 quarters back and 0, 1 or 2 dimes, 0.25-0.49 you get 1 quarter and 0, 1 or 2 dimes, 0.50-0.74 you get 2 quarters and 0, 1 or 2 dimes, 0.75-0.99 you get 3 quarters and 0, 1 or 2 dimes. So below 0.50 in change, two-thirds of the time you&#039;ll get either 1 or 2 dimes back and half the time either 0 or 1 quarter. It seems like the odds are good that you get as many or more dimes back than quarters. Above .50 you are guaranteed to get as many or more quarters back than dimes. But does the actual overall probability match your original 15:8 quarters to dimes ratio? My brain hurts.[/QUOTE]</p><p><br /></p>

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