In a survey of 520 Latin music downloads in a certain year, 280 were regional (Mexican/Tejano), 140 were pop-rock, 70 were tropical (salsa, merengue,cumbia,bachata), and 30 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: ___________

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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In a survey of 520 Latin music downloads in a certain year, 280 were regional (Mexican/Tejano), 140 were pop-rock, 70 were tropical (salsa, merengue,cumbia,bachata), and 30 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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