Historically, fluctuations in the amount of rare metals found in coins are not uncommon
Early Coinage,
|
Late Coinage,
|
5.9 | 5.3 |
6.8 | 5.6 |
6.4 | 5.5 |
7.0 | 5.1 |
6.6 | 6.2 |
7.7 | 5.8 |
7.2 | 5.8 |
6.9 | |
6.2 | |
Average: 6.7 | Average: 5.6 |
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An Introduction to Mathematical Statistics and Its Applications (6th Edition)
- Glencoe Algebra 1, Student Edition, 9780079039897...AlgebraISBN:9780079039897Author:CarterPublisher:McGraw Hill