The number of trees required as a basis for a satisfactory table depends upon:
Correct answer: C. All of the above
- A. The grouping adopted
- B. The precision required
- C. All of the above
- D. The deviations of individuals tree volumes from the means in each group
Explanation
A satisfactory volume table needs enough sample trees to represent the adopted groups, achieve the required precision and reduce the effect of variation in individual tree volumes within each group. Hence all three factors affect sample size.
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