Problem
You are hired as a subject coordinator and receive an impromptu call from your director asking you to give a quick run-down of your student group's performance. Since you cannot access Excel's full capabilities from your mobile phone, you need to manually undertake some statistical analysis so that you can give your director a prompt answer.
You obtain the final subject marks for your 7 students which are listed below:
47, 47, 54, 66.5, 78.5, 89.5, 96
What is the pass rate for your course? (Note that 50 is deemed as a pass). You should try to avoid failing more than 20% of students. Have you satisfied this requirement?