Question: Your school receives a ranking depending on the overall average of all students in the school. Suppose the school wants an overall average of 90%.

Your school receives a ranking depending on the
Your school receives a ranking depending on the overall average of all students in the school. Suppose the school wants an overall average of 90%. The following data represent the averages of 8 other classrooms. What grade would the 9" classroom need in order for the average among all classes to be at least a 90%? Class 1 Class 2 Class 3 Class 4 Class 5 Class 6 Class 7 Class 8 Class 9 93 80 70 86 68 92 74 83 X

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