A student scores 50 on a psychology exam and 83 on an economics exam. The psychology exam has a mean score of 60 and the standard deviation of 5. The economics exam has a mean score of 80 and a standard deviation of 10. Find the z-score for each test and decide which exam score is relatively better.
What is the z-score for the psychology test score?
What is the z-score for the economics test score?
Choose the test on which the student had the better score.
This solution calculates z-scores for a student's exam scores.