medium · SAT Math
The two-way table below shows the number of students at a high school, categorized by grade level and preferred study method, based on a survey of 200 students. Library Online Total Grade 10 45 30 75 Grade 11 25 50 75 Grade 12 20 30 50 Total 90 110 200 A student who prefers studying in the Library is selected at random from this survey. What is the probability that this student is in Grade 11?
- 1/8
- 5/18
- 1/3
- 5/9
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