2. All correlation coefficients fall within the range of −1 ≤ r ≤ 1. There is no range for the unstandardized regression coefficients.

4. Which one of the following statements is correct?
1. The correct range for the correlation coefficient is −1 ≤ r ≤ 1 2. The correct range for the regression coefficient is −1 ≤ b ≤ 1 3. The correct range for probability is −1 ≤ p ≤ 1 4. The correct range for the probability of committing a Type I error is −1 ≤ α ≤ 1