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Probability and conditional probability SAT question
Math · Problem-Solving and Data Analysis · Medium · Answer it here, explanation included.
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Penguin Exhibit |
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The number of penguins in a zoo exhibit, sorted by gender and type of penguin, is shown in the table above. Which type of penguin has a female population that is the closest to being 
of the total female penguin population in the exhibit?
ExplanationShow
Choice A is correct. It is given that there are 180 female penguins in the exhibit. Therefore, of the female penguins is 
penguins. According to the table, there are 59 female chinstrap penguins, 27 female emperor penguins, 54 female gentoo penguins, and 40 female macaroni penguins. So the female chinstrap penguin population is the closest to 60, or of the total female population in the exhibit.
Choices B, C, and D are incorrect and may result from reading data from the table incorrectly. Since the total female penguin population is 180, of the total female penguin population is 60. The numbers of female emperor (27), female gentoo (54), and female macaroni (40) penguins are not as close to 60 as the number of female chinstrap penguins (59).
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