Correlation Coefficient Assignment

The mean and standard deviation for a number of robberies in the U.S. from 2000 to 2015 are x̄ = 354,718 and sx = 28,803. The mean and standard deviation for a number of assaults in the U.S. for the same time period are ȳ = 774,140 and sy = 44,910. The correlation coefficient is r = 0.84. Find the equation for the least-squares regression line for a number of assaults compared with the number of robberies.

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A. ŷ = 309,552.15 + 1.31x

B. ŷ = 1.31 + 309,552.15x

C. ŷ = 546,641.84 + 0.64x

D. ŷ = 0.64 + 546,641.84x

E.  Unable to determine the equation

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