python 3

Task 4: Writing your own Letter grade Sorter Your roommate, who is studying Biology at RU, had asked you about grades in your courses. As a Clever CS/IS/Computing oriented individual such as yourself, you would take this opportunity to develop some software to make this a useful python application for your roommate. Once this has been completed, you could share this software to decipher your grades in your courses by entering the numeric value. Write a function which is given an exam mark, and it returns a string - the grade for that mark -- according to this scheme: Example: Enter in a number>>>90 Nice work, You've earned an 'A' for the course T Mark Grade Su 90 B (80-90) 170-80) c D [60-70) F