Final answer:
The answer to the student's question is true; 'Mamma Mia!' is a Jukebox Musical that features hit songs from the band ABBA, making it a classic example of this type of musical theater.
Step-by-step explanation:
The student's question regarding whether the video sample of the musical "Mama Mia" is an example of a Jukebox Musical is indeed true. A Jukebox Musical is a type of musical theater performance wherein the majority of the songs are well-known pop music hits, rather than original music written specifically for the show. Mamma Mia! is a prime example of a Jukebox Musical because it features a host of hit songs from the popular 1970s band ABBA, which are woven into the narrative of the play to enhance the story and character development.