We have 5 observations of two variable y and x Using a calcu
     We have 5 observations of two variable y and x  Using a calculator, determine sample means, sample variance of X and Y. Then, using these results, calculate the regressions coefficients. Write the equation for the linear predicator Calculate the predicated for  Calculate the residual error for x_4 = 7. Sketch the scatter plot and predicated line.   
  
  Solution

