Consider the stem and leaf diagram below showing the numerical grade awarded (out of 350) to the students Stem-and Leaf of GradeAwarded N = z Leaf Unit = 10 5 0 12223 14 0 44555588 y 1 0001122233 (x) 1 55555556667889 12 2 12 2 666677777 3 3 234 What is the value of y

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