Fifty-six people have signed up for a karaoke contest at a local nightclub. Of them, 19 sang in a band, chorus, or choir while in high school and 37 did not. Suppose one contestant is chosen at random. Consider the following two events: The selected contestant sang in a band, chorus, or choir while in high school, and the selected contestant did not sing in a band, chorus, or choir while in high school. If you are to find the probabilities of these two events, would you use the classical approach or the relative frequency approach? Explain why.