Use the normal distribution of SAT critical reading scores for which the mean is 513
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 |
(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.)