Mathematics, 06.04.2021 14:00, jackiecroce1

The mean grade in Mathematics of Grade 11 students from school A is 83 with standard deviation of 4, while the mean grade in Mathematics of Grade 11 students from school B is 87 with standard deviation of 5. Using 49 samples from school A and 64 from school B, what is the probability that the mean grade of students from school B exceeds the mean grade of students from school A by at most 6?

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The mean grade in Mathematics of Grade 11 students from school A is 83 with standard deviation of 4,...