Accurate and Precise
NOT accurate, NOT precise
Precise, NOT accurate
The closeness of a measure to the true value.
How reproducible a measure is; how consistently it can get the same result.
Based upon something directly based upon one of the five senses. (i.e. Mr. O'Neill is standing in front of the room facing the class)
Something we can figure out based upon observations and our reasoning abilities. (i.e. Mr. O'Neill is the teacher)
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