[ Mathematics ] Open Question : help with stats question?

The income (yi in $100, 000) and number of patients (xi in 100s) is recorded in n = 10 medical practices, yielding data for which the sum- mary statistics are Xbar = 51.8,Ybar = 5.1, Sxx = 27100 Syy = 280.1 Sxy = 2665 Obtain Cxx, Cyy and Cxy and hence show that the fitted regression line of Y on X has slope a = 0.0867 and intercept b = 0.6091, and calculate the estimate s of the standard deviation ? for the model.

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Nicole Richie Justin Bieber Katy Perry