In a class of40 social sciences students, 10 are not showing any covid-19 signs and every student of the remaining 30 has high fever, chest pain or both. If 15 have high fever and 25 have chest pain. If a student is selected randomly from this group, what is the likelihood that he/she I. II. III. IV. High fever Has chest pain Has high fever and chest pain Has either high fever or chest pain (2m arks) (2marks) (2m arks) (2 marks)