Curing times in days (x) and compressive strengths in MPa (V) were recorded for several concrete specimens. The means and standard deviations of the x and y values were * = 5, s, = 2, 5 = 1350, s, = 100. The correlation between curing time and compressive strength was computed to be r = 0.7. Find the equation of the least-squares line to predict compressive strength from curing time.

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Curing times in days (x) and compressive strengths in MPa (V) were recorded for several
concrete specimens. The means and standard deviations of the x and y values were
* = 5, s, = 2, 5 = 1350, s, = 100. The correlation between curing time and compressive
strength was computed to be r = 0.7. Find the equation of the least-squares line to predict
compressive strength from curing time.
Transcribed Image Text:Curing times in days (x) and compressive strengths in MPa (V) were recorded for several concrete specimens. The means and standard deviations of the x and y values were * = 5, s, = 2, 5 = 1350, s, = 100. The correlation between curing time and compressive strength was computed to be r = 0.7. Find the equation of the least-squares line to predict compressive strength from curing time.
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