Question: In a large class in statistics, the final examination grades have a mean of 67.4 and a standard deviation of 12 Q1) Assuming that the

In a large class in statistics, the final examination grades have a mean of 67.4 and a standard deviation of 12 Q1) Assuming that the distribution of these grades is normal, find the number of passes (pass mark is 50) in a class of 180

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