Suppose the heights of sons and fathers has a correlation of 0.6, and both sons and fathers have an average height of 68 inches.
If the average height of sons of 74-inch fathers is 72 inches, does this mean that the average height of fathers of 72-inch sons is 74 inches? Explain.
If the average height of sons of 68-inch fathers is 68 inches, does this mean that the average height of fathers of 68-inch sons is 68 inches? Explain.