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Mathematics, 10.12.2020 07:50 drewje12

Q. If heights of 3rd graders follow a normal distribution with a mean of 52 inches and a standard deviation of 2.5 inches, what is the z score of a 3rd grader who is 47 inches tall? A. z=-5
B. z=-2
C. z=2
D. z=5

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