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9 replies to this topic

#1 mmiguel

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Posted 03 September 2012 - 09:22 AM

Mr. Wonka produced 100,000 Wonka bars this year, 5 of which have golden tickets inside of them.

To appease his spoiled daughter, Veruca, Mr. Salt is willing to buy enough Wonka bars to ensure with probability >= 75% that he will have purchased at least one of those tickets.
How many does he need to buy?
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#2 kbrdsk

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Posted 03 September 2012 - 11:49 AM

Spoiler for

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#3 phil1882

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Posted 03 September 2012 - 12:49 PM

Spoiler for i get

Edited by phil1882, 03 September 2012 - 12:49 PM.

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#4 kbrdsk

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Posted 03 September 2012 - 01:31 PM

Spoiler for i get

How?
Spoiler for

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#5 plasmid

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Posted 03 September 2012 - 03:28 PM

How?

Spoiler for

This problem calls for a different approach. The reason is:
Spoiler for

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#6 superprismatic

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Posted 03 September 2012 - 05:03 PM

Spoiler for my calculations give

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#7 plainglazed

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Posted 03 September 2012 - 07:46 PM

Spoiler for just about the same...

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#8 phil1882

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Posted 03 September 2012 - 10:07 PM

Spoiler for my logic

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#9 mmiguel

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Posted 03 September 2012 - 10:56 PM

Spoiler for my calculations give

Spoiler for agree


nice work!


Spoiler for explanation

Edited by mmiguel, 03 September 2012 - 10:59 PM.

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#10 ~andy~

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Posted 23 October 2012 - 03:18 PM

Spoiler for To get >75%

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