Question

Lola played 7 songs from each piano book in her music library. Each piano book has an equal number of songs.

Is this sample of the songs in the music library likely to be biased?
yes or no

Answer 1

Yes, this sample of the songs in the music library is likely to be biased. By only selecting 7 songs from each piano book, Lola may not be obtaining a representative sample of all the songs available in her music library, especially if the songs vary significantly in popularity, style, or other characteristics. Additionally, if some piano books have more varied or more popular songs than others, this method of sampling may not reflect the overall distribution of songs in her library.