You are the Foreman of the bar S cattle ranch in Colorado a memory ranch has cabs for sale and you are going to buy some cabs to add to the bar as heard how much should a healthy calf weigh let X be the age of the calf in kilograms given EX =95, EY = 609, EX squared = 2375, Ey squared = 81,559, EX Y = 13,777 and r = 0.997

Verify the given sums of EX, EY, EX squared, EY squared, EX Y and the value of the sample correlation coefficient of R.

Find X and Y then find the equation of the least squared line Y equals a + b x

Find the value of the co Coefficient of determination R. what percentage of the variation n yi can be explained by the correspondin variation in X and the least squares line? what percentage is unexplained? r= ? explained? unexplained =?

The calfs want to buy are 13 weeks old what does the least squared lying predict for a healthy weight in kilograms