The following table gives the percentage of music downloaded from the United States
The following table gives the percentage of music downloaded from the United States and other countries by U.S. users:
U.S. | Germany | Canada | Italy | U.K. | France | Japan | Other |
45.0 | 16.0 | 6.5 | 6.3 | 4.3 | 3.8 | 2.7 | 15.4 |
(a) Verify that the table does give a probability distribution for the experiment. The sum of the percent is %, so this does give a probability distribution.
(b) What is the probability that a U.S. user who downloads music, selected at random, obtained it from either the United States or Canada? (Enter your answer to three decimal places.)
(c) What is the probability that a U.S. user who downloads music, selected at random, does not obtain it from Italy, the United Kingdom (U.K.), or France? (Enter your answer to three decimal places.)
11 years ago
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