What this Reading Covers

Data & Distributions

To speak effectively about vegetation measurements one must "know the language."  Many of the following terms probably have some meaning to you, but do you know the precise, statistical meaning of these words?

• Attribute

• Population

• Sample

• Parameter

• Statistic

• Sampling Distributions

• Sample Mean

• Sample Variance

• Standard Error

• Confidence Interval

• Accuracy and Bias

• Precision and Error

There are several good on-line modules and pages describing these terms. Visit the following two sites to explore and discover the meaning of these words:

• Basic Statistics in Natural Resources (University of Idaho)

• Sampling Terminology and Theory (University of Arizona)

** Note: This course will include substantial use of descriptive statistics.  A basic statistics class was not required for the course. However, if you have not had a stats course or if you need a refresher, I suggest you visit the sites listed above and understand the terms listed above.