1. Data were collected from 93 children and their heights were measured at 30 time points between the ages of 1 year and 18 years. The correlation matrix below shows the relations between their heights at 1, 6, 12, and 18 years of age.

	Height at Year 1	Height at Year 6	Height at Year 12
Height at Year 6	0.560384 < 0.0001
Height at Year 12	0.475606 < 0.0001	0.883594 < 0.0001
Height at Year 18	0.554381 < 0.0001	0.585229 < 0.0001	0.472878 < 0.0001
Cell Contents:	Pearson correlation P-Value

What is the correlation betweenheight at year 1 andheight at year 18? Round your answer to four decimal places.

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