In a survey of 400 Latin music downloads in a certain year, 200 were regional (Mexican/Tejano), 120 were pop-rock, 65 were tropical (salsa/merengue/cumbia/bachata), and 15 were urban (reggaeton). Calculate the following relative frequencies. (a) that a music download was pop-rock (b) that a music download was neither tropical nor regional (c) that a music download was not regional HINT [See Example 1.]

In a survey of 400 Latin music downloads in a certain year, 200 were regional (Mexican/Tejano), 120 were pop-rock, 65 were tropical (salsa/merengue/cumbia/bachata), and 15 were urban (reggaeton). Calculate the following relative frequencies. (a) that a music download was pop-rock (b) that a music download was neither tropical nor regional (c) that a music download was not regional HINT [See Example 1.]

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Question

In a survey of 400 Latin music downloads in a certain year, 200 were regional (Mexican/Tejano), 120 were pop-rock, 65 were tropical (salsa/merengue/cumbia/bachata), and 15 were urban
(reggaeton). Calculate the following relative frequencies.
(a) that a music download was pop-rock
(b) that a music download was neither tropical nor regional
(c) that a music download was not regional HINT [See Example 1.]

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