FOREST BIOMETRICS EXAM 1
CORRECT 100%
Forest Biometrics - ANSWERthe application of measurement methods to the
solution of biological problems of forest resources
Mensuration - ANSWERthe act of measuring; geometry applied to the computation
of lengths, areas, or volumes from given dimensions or angles
Sample - ANSWERconsists of a certain number of individual sampling units, chosen
by a specific method, which not only possess the desired characteristic(s) but which
are also representative of the population
Parameters - ANSWERpopulation conditions that are estimated with statistics
Statistics - ANSWERinformation obtained from the sample, such as the mean,
variance, standard deviation, etc.
Random Sample - ANSWERone which has been chosen, not haphazardly, but
according to definite probability laws
Forest Mensuration - ANSWERdeals with the determination of the volume of logs,
trees, and stands and with the study of increment and yield
Sampling - ANSWERconcerned with the collection of information, whether it be
quantitative or qualitative, from sampling units which possess the characteristic(s) in
which we are interested
Requirements of a "good" sample - ANSWER1. be a true representation of the
population
2. be of sufficient size
3. have been collected in an unbiased manner
Population - ANSWERthe sum total of all sampling units which possess the desired
characteristic (may be finite or infinite in size)
Systematic Sample - ANSWERa method whereby the sampling units are chosen
according to a definite predetermined pattern
Accuracy - ANSWERsuccess in measuring the true value of a quantity; an estimator
to or very close to the true value
Precision - ANSWERrefers to the clustering of sample values about their own mean;
repeatibility; similar to the variance or standard deviation in statistical terms
Bias - ANSWERsystematic distortion; results in consistent error in the measurement
process
CORRECT 100%
Forest Biometrics - ANSWERthe application of measurement methods to the
solution of biological problems of forest resources
Mensuration - ANSWERthe act of measuring; geometry applied to the computation
of lengths, areas, or volumes from given dimensions or angles
Sample - ANSWERconsists of a certain number of individual sampling units, chosen
by a specific method, which not only possess the desired characteristic(s) but which
are also representative of the population
Parameters - ANSWERpopulation conditions that are estimated with statistics
Statistics - ANSWERinformation obtained from the sample, such as the mean,
variance, standard deviation, etc.
Random Sample - ANSWERone which has been chosen, not haphazardly, but
according to definite probability laws
Forest Mensuration - ANSWERdeals with the determination of the volume of logs,
trees, and stands and with the study of increment and yield
Sampling - ANSWERconcerned with the collection of information, whether it be
quantitative or qualitative, from sampling units which possess the characteristic(s) in
which we are interested
Requirements of a "good" sample - ANSWER1. be a true representation of the
population
2. be of sufficient size
3. have been collected in an unbiased manner
Population - ANSWERthe sum total of all sampling units which possess the desired
characteristic (may be finite or infinite in size)
Systematic Sample - ANSWERa method whereby the sampling units are chosen
according to a definite predetermined pattern
Accuracy - ANSWERsuccess in measuring the true value of a quantity; an estimator
to or very close to the true value
Precision - ANSWERrefers to the clustering of sample values about their own mean;
repeatibility; similar to the variance or standard deviation in statistical terms
Bias - ANSWERsystematic distortion; results in consistent error in the measurement
process
