You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf (in weeks), and let y be the weight of the calf (in kilograms). x 1 3 10 16 26 36 y 42 49 78 100 150 200 Complete parts (a) through (e), given Σx = 92, Σy = 619, Σx2 = 2338, Σy2 = 82,749, Σxy = 13,669, and r ≈ 0.998. (b) Verify the given sums Σx, Σy, Σx2, Σy2, Σxy, and the value of the sample correlation coefficient r. (Round your value for r to three decimal places.) Σx = Σy = Σx2 = Σy2 = Σxy = r =
Equations and Inequations
Equations and inequalities describe the relationship between two mathematical expressions.
Linear Functions
A linear function can just be a constant, or it can be the constant multiplied with the variable like x or y. If the variables are of the form, x2, x1/2 or y2 it is not linear. The exponent over the variables should always be 1.
You are the foreman of the Bar-S cattle ranch in Colorado. A neighboring ranch has calves for sale, and you are going to buy some calves to add to the Bar-S herd. How much should a healthy calf weigh? Let x be the age of the calf (in weeks), and let y be the weight of the calf (in kilograms).
| x | 1 | 3 | 10 | 16 | 26 | 36 |
| y | 42 | 49 | 78 | 100 | 150 | 200 |
Complete parts (a) through (e), given Σx = 92, Σy = 619, Σx2 = 2338, Σy2 = 82,749, Σxy = 13,669, and r ≈ 0.998.
(b) Verify the given sums Σx, Σy, Σx2, Σy2, Σxy, and the value of the sample
| Σx = | |
| Σy = | |
| Σx2 = | |
| Σy2 = | |
| Σxy = | |
| r = |
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 3 images
