1. Your score on a course exam was 95 and your z score on this exam was +2.0. The distribution of exam scores had a σ = 5. What was the mean on the exam? 2. A standardized math test for 5th graders...

1. Your score on a course exam was 95 and your z score on this exam was +2.0. The distribution of exam scores had a σ = 5. What was the mean on the exam?

2. A standardized math test for 5th graders has a μ = 50. A student scores 60 on this exam and their z score is +1.50. What is the σ for the standardized test?