Chapter 5 Flashcards
These are samples of about the same size that are carried through an analysis in exactly the same way.
Replicates
What is the most widely used measure of central value?
Mean
Mean is also called as?
Arithmetic mean or average
It is the middle value in a
set of data that has been arranged in numerical order
Median
It is obtained by dividing the sum of replicate
measurements by the number of measurements in the set
Mean
used advantageously when a set of data contain an outlier
Median
a result that differs
significantly from others in the set.
Outlier
It is the closeness of results to others obtained in exactly the same way.
Precision
What are the three terms that are widely used to describe the precision of a set of replicate data?
standard deviation, variance, and coefficient of variation
It is determined by simply repeating the measurement on replicate samples
Precision
It indicates the closeness of the measurement to the true or accepted value and is expressed by the error.
Accuracy
The closeness of a measured value to the true or accepted
value.
Accuracy
It is the difference between the measured value and the true value
Absolute Error
It tells you whether the
value in question is high or low
Absolute error
the absolute error divided by the true value
Relative Error
