Mathematics, 05.11.2019 05:31 trent1002brown

Aprofessor of statistics noticed that the marks in his course are normally distributed. he has also noticed that his morning classes average 73%, with a standard deviation of 12% on their final exams. his afternoon classes average 77%, with a standard deviation of 10%.what is the probability that the mean mark of four randomly selected students from a morning class?

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