Your friend, Azveena, came to office late today. Sometime Azveena is late due to the lateness of the public bus that she use to commute and/or sometimes due to oversleeping. Offent she use her phone alarm to wake her up which can wake her up most of the time but not always. Based on the scenario, a graphical representation along with the conditional probability tables are given as follows: Bus Late? no yes 02 On Time? Alarm On? Over slept? bus, overs yes yes yes, no no yes no, no yes 101 02 03 no yes 09 alarm yes no 09 0.1 no 09 01 yes 0.1 0.9 07 01 a. Compute the probability that she was late today because of the public bus but not over- sleeping and alarm was on which could help her wake up on time. b. Compute the probability that she was late due to oversleeping but bus was not late