Successful and Spread Out

Difficulty: Medium · Topics: Probability, Statistics, Standard Deviation

The table shows statistics of a class's scores in five exams.

Subject Mean Mode Median Std. dev. --- --- --- --- --- Mathematics 75 40 30 2 Literature 60 60 60 6 Physics 75 80 90 15 Chemistry 50 40 30 20 Biology 40 50 50 10

In which exam were the students both the most successful and the most varied in their scores?