Instruments providing 360-degree feedback to managers are particularly useful for leadership development.

How do prescriptive models benefit from Big Data?

a. They are based on aggregated inputs, and their validity improves with high-volume data. b. They often require iterative approaches to find optimal solutions. c. Both a and b d. None of the above

Which of the following statements is true about r2?

A) It is also called the coefficient of correlation. B) It is also called the coefficient of determination. C) It represents the percent of variation in X that is explained by Y. D) It represents the percent of variation in the error that is explained by Y. E) It ranges in value from -1 to + 1.