Exercise 4: At the end of his Bachelor's degree in civil engineering, a student applies for the following three jobs: A: Draftsman in municipal engineering. B: Technician in construction, and C: Technician in geotechnies. He estimates that his chances of getting an offer for job A are 50%, for job B, 40% and for job C, 20%. Moreover, his chances of getting an offer forjobs A and B are 10%; forA and C, 4%, for B and C, 3%; and for A, B and C, 1%. 1. What is the probability that this student will not get any oers? 2. What is the probability that this student 1will get an offer for A but not for B or C? 3. If the student received an offer for A or for C, what is the probability that he did not receive an offer for B