Forest Mensuration Midterm 1 Exam With Multiple Choices

Forest Mensuration Midterm 1 Exam
With Multiple Choices

Forest inventory data are used for

a. land acquisition
b. timber sales
c. management plans
d. special surveys
e. all of the above - correct answer-e

Special purpose inventories include

a. planting exams
b. regeneration surveys
c. pre-commercial thinning inspections
d. emissions surveys
e. all of the above - correct answer-e

Reasons for sampling include

a. to reduce cost of obtaining information
b. to increase speed of data acquisition
c. to achieve greater scope
d. to achieve greater accuracy
e. all of the above - correct answer-e

The Central Limit Theorem tells us that

a. everything is normally distributed
b. you should never use statistics based on the normal distribution if the distribution of
sampling units is not normal
c. as sample size increases the distribution of sample means becomes closer and
closer to a normal distribution
e. as sample size increases, the standard error of the mean decreases
d. nothing is normally distributed
f. a and c
g. c and e - correct answer-g

The average number of board feet that can be manufactured per cubic foot of wood
from a Douglas-fir tree with dbh = 25" and total height = 140' is approximately: