Suppose there are 120 seniors (12th grade students) in a certain high school. This high school offers only two foreign language classes: German and French. It is also known that 50 seniors are taking French, 70 seniors are taking German, and 20 seniors are taking both French and German. What is the probability that a senior from this highschool is taking German, given that they are taking French?     0.4     0.45     0.35     0.3

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