On a standardized exam, the scores are normally distributed with a mean of 750 and a standard deviation of 25. Find the z-score of a person who scored 775 on the exam.

Which of these international trade concepts results in specialization and trade increases in total world output? a) absolute advantage b) balance of payments c) absolute advantage d) international tariffs

The graph shows the populations of two species over time. which type of symbiotic relationship does the graph represent? a. commensal b. mutualistic c. parasitic d. parent-offspring e. predator-prey

Aplan that covers all qualified higer education expenses is known as a