II. Record in a university shows that 60% of students here get a job within 2 months after graduation. Past records indicate that for students in the school who get a job within 2 months after graduation, 70% gets scholarship at least one time during university. For those who can not get a job within 2 months, 25% get at least one university scholarship. Randomly select 1 student. Answer the following question:
a. What is the probability that the selected student does not get a scholarship, given that he cannot
get a job within 2 months after graduation?
b. What is the probability that the selected student gets no university scholarship?