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Mathematics, 15.05.2021 01:00 hunter3978

A representative sample of trees in a forest shows the trees to have a mean circumference of 19.7 inches and a standard deviation of 1.3 inches. Assuming the are normally distributed, what is the Z-score for a tree with a circumference of 22 inches?
Α. 1.77
B.-1.77
C -6.85
D 6.85

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