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Digital SAT
Digital SAT Mathematics - Calculator Section

Probability of Preferring Study Methods

Hard Problem Solving And Data Analysis Probability And Statistics

In a college statistics class, students were surveyed about their preferred study methods. The results showed that:

  • 15 students preferred group study.
  • 10 students preferred individual study.
  • 5 students preferred online resources.
  • 4 students preferred library study.
  • 3 students used a combination of methods.

What is the probability that a randomly selected student prefers either group study or library study?

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% Correct92%