A professor at a local university noted that the exam grades of her students were normally distributed with a mean of 73 and a standard deviation of 11. If 69.5 percent of the students received grades of C or better, what is the minimum score of those who received C's?
A) 70.39
B) 67.39
C) 50.39
D) 65.39

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The Answer of A professor at a local university noted that the exam grades of her students were normally distributed with a mean of 73 and a standard deviation of 11. If 69.5 percent of the students received grades of C or better, what is the minimum score of those who received C's?
A) 70.39
B) 67.39
C) 50.39
D) 65.39

A Professor at a Local University Noted That the Exam