1. In your own words, express the main idea of the statement that "a correlation does not imply causation". (Section 10-2).

2. In your own words, describe the difference between the two regression equations: ^y= b0 + b1x and y = 0 + 1x + e (Section 10-3).

3. A geneticist wants to develop a method to predict the color of a baby's eyes, based on the eye colors of the baby's parents. In his own words, say whether the methods in Section 10.5 of the text can be used. Explain why or why not.