survey of 480 Latin music downloads in a certain year, 250 were regional (Mexican/Tejano), 140 were pop-rock, 70 were tropical (salsa/merengue/cumbia/bachata), and 20 were urban (reggaeton). Calculate the following relative frequencies. (Round your answers to two decimal places.) (a) a music download was regional (b) a music download was either tropical or urban (c) a music download was not urban

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