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Elementary Probability, a la Shmoop. It's time for the annual Dynamite and Explosives

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Conference. Since it started ten years ago, this thing

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has really... blown up. Max Goboom <<Go-Boom>> is the event coordinator

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in charge of organizing the conference. Because of the explosive personalities involved,

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he must carefully lay out seating charts or risk <batman style> ka-blam!

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He has arranged all 36 square tables in a 6 by 6 formation.

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As an added treat, he has rigged all prime numbered tables to detonate at the flip of

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a switch. Oh, that joker.

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What are the chances that any random attendee... ...may wind up with chunks of wood in their

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chicken caesar? Here are your choices:

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Really no way to solve this one other than to count the prime numbers.

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So... look for numbers that are not divisible by anything other than 1 and themselves.

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We get, 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, and 31...

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Did you count 11 of them? So did we. Now take 11 and divide it by the total number

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of tables: 36. Convert to a percentage by moving the decimal

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two places to the right and adding a percent sign.

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...Answer "C" it is. So each attendee has a 30 point 6 percent chance of getting a booby-trapped

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table. Max's ill-advised surprise created quite a

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mess... ...but at least no one was hurt.

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