3. (5 pts). A TA is supposed to hold ofce hours from 1-2pm but actually arrives uni- formly at random between 1-2pm (and then stays to 2pm]. Meanwhile a student arrives independently uniformly at random between 1-2pm. If the student arrives and the TA is not there, they wait for 15 minutes. If the TA has not arrived in 15 minutes, the}; give up and ge heme. What is the probability that the student sees the TA