Last Month's Problem: "Average Height"

<<<< This Month's Problem

Grade Number of Students in Grade Average Height of Students in Grade, in centimeters
1 26 122
2 32 127
3 32 133


What is the average height, in centimeters, of all 90 students in grades 1, 2, and 3?

Give your answer to the nearest 0.1.

centimeters
 
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