Art, Music, and Creative Writing homework help

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as of june,2005,the top 6 best selling albuns of all time, by artist, are the eagles (E), michael jackson (M), pink floyd (P), led zeppelin (L), AC/DC (A), and billy joel (B). list the 15 possible samples (without replacement) of two artists that can be selected from the six. for brevity, use the initial provided.