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This exercise provides information about data in a survey of students. Of the students who identified...

This exercise provides information about data in a survey of students. Of the students who identified their class year in the survey, 91 were first years, 189 were sophomores, 71 were juniors, and 49 were seniors. Find p ^ , the proportion who are upperclass students (juniors or seniors.) Round your answer to three decimal places. p ^ = Enter your answer in accordance to the question statement the absolute tolerance is +/-0.001

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Here , in survey of students, 91 were first years, 189 were sophomores, 71 were juniors, and 49 were seniors.

Now the proportion of upper class students i.e. juniors or seniors is

7149 120 0.3 91 18971 49 400

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