Mathematics · Averages
For the given 6 values: 15, 24, 18, 33, 42, 54, the three-yearly moving averages are respectively:
- 119, 17, 30, 42
- 219, 25, 31, 42
- 319, 25, 30, 43
- 419, 25, 31, 43✓
Correct answer
19, 25, 31, 43
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