Question
Large group of students took a test in English and the final grades have a mean of 75 and a standard deviation of 8. If we can approximate the distribution of these grades by a normal distribution. What percentage of the students
(ii) Should pass the test (grades >= 60)
(iii) Should fail the test(grades <60?
(ii) Should pass the test (grades >= 60)
(iii) Should fail the test(grades <60?
Answers
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