the average length of time required for students to complete a test in an introductory statistics course is found to be 50 minutes with a standard deviation of 12 minutes. if students are allowed 80 minutes to complete the test, approximately, what proportion of the students will have sufficient time to complete the test? (assume that the time required to complete the test follows a normal distribution.)

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04-11-2022
Mathematics

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the average length of time required for students to complete a test in an introductory statistics course is found to be 50 minutes with a standard deviation of 12 minutes. if students are allowed 80 minutes to complete the test, approximately, what proportion of the students will have sufficient time to complete the test? (assume that the time required to complete the test follows a normal distribution.)

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