ShmoopTube

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Sets, a la Shmoop. This is Priscilla.

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Priscilla is an ugly chinchilla.

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Yeah, we know it's supposed to be "ugly duckling," but chinchillas are more fun.

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And they take it less personally. Priscilla is obsessed with sets -- groups

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of numbers, objects or variables...

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... that help us see relationships and differences between various elements.

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She wanted to see what her ugly chinchilla friends had grown up to be, so she surveyed

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eighty-three formerly ugly chinchillas.

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The survey results came back:

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Chinchilla Coat. Road kill.

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And... swan.

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Priscilla arranged her set of information into a circle diagram, also known as a Venn

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Diagram.

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Some chinchillas had become more than one thing.

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Can you determine how many formerly-ugly chinchillas became swans?

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Hook Priscilla up with the correct answer.

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To find out how many chinchillas became swans, we need to first identify the Swan Circle.

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No. Awesome, but no.

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Bingo!

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Now add together all the pieces of the diagram in the Swan Circle:

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12 + 6 + 3 + 9 = 30

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Hey there, choice C. Priscilla's diagram tells us that thirty out

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of the eighty-seven formerly-ugly chinchillas became swans.

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Just remember, Priscilla - no chinchilla looks ugly taking a dust bath.

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