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Average - Data Intensity 2 :: Discussion
| 38. | The average of 9 observations was 9, that of the 1st of 5 being 10 and that of the last 5 being 8. What was the 5th observation? | |
| A. | 9 | |
| B. | 8 | |
| C. | 7 | |
| D. | 6 | |
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