Question: Scores on an assignment follow a normal model with mean of 75 and standard deviation on 10. Use the 68-95-99.7 rule to answer. PLEASE SHOW
Scores on an assignment follow a normal model with mean of 75 and standard deviation on 10. Use the 68-95-99.7 rule to answer. PLEASE SHOW DETAILED WORKING, I have three questions and I want a format of the answers for this one.
Draw pictures.
What percentage of students score less than 55?
What percentage of students score greater than 95?
What percentage of students score between 65 and 85?
If a students gets a mark of 82, what is the z score of this mark? explain this z-score
BONUS: If a students gets a mark of 100, what is the z-score of this mark?
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