Matty’s piano book includes 15 songs in the key of c, 10 in the key of g, and 5 in the key of f. the songs from all three keys appear in random order. over the past month, matty has randomly opened his piano book to a song in the key of c 80 times, the key of g 30 times, and the key of f 10 times. what are the theoretical and experimental probabilities that the next song matty randomly picks will be in the key of g?