The grades in an exam have a normal distribution with p=75 averages and o=8 standard deviation. The teacher gives AA to those who score 90 and above. Since 12 students got AA, what is the approximate...


The grades in an exam have a normal distribution with p=75 averages and o=8 standard<br>deviation. The teacher gives AA to those who score 90 and above. Since 12 students got<br>AA, what is the approximate number of students taking the exam?<br>

Extracted text: The grades in an exam have a normal distribution with p=75 averages and o=8 standard deviation. The teacher gives AA to those who score 90 and above. Since 12 students got AA, what is the approximate number of students taking the exam?

Jun 08, 2022
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