Page 10 - Statistics presented by Dr. Sara Ismail Aborass
P. 10
9/8/2023
Measures of Central Tendency–Arithmetic Mean
-Sort data by value. Figure 5-1 Results from six
-Median is the replicate determinations of iron in
central value of
this series. aqueous
samples of a standard solution
containing 20.0 ppm iron(III).
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Measures of Central Tendency–Mode
The mode of a set of measurements is defined
to be the measurement that occur most often
(with the highest frequency).
◉ The most frequent value.
◉ Large number of values necessary.
◉ It is possible to have two or more modes.
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