PROBABILITY: You can win concert tickets from a radio station if you are the first person to call when the song of the day is played, or if you are the first person to correctly answer the trivia question. The song of the day is announced at a random time between 7:00 a. m. and 7:30 a. m. The trivia question is asked at a random time between 7:15 a. m. and 7:45 a. m. You begin listening to the radio station at 7:20. Find the probability that you miss the announcement of the song of the day or the trivia question.