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ERROR ANALYSIS**, The analysis of the measurement data is necessary to…
ERROR ANALYSIS
**
Range
Range is defined as the difference between the
greatest and least values of the data.
Diviation
Deviation is the departure of the observed reading
from the arithmetic mean of the group of readings
Standard deviation
(Root mean square deviation)
The standard deviation is defined as the square root of
sum of individual deviations squared divided by the number of readings
Average diviation
Average deviation is defined as the sum of absolute
values of deviation divided by the number of reading
dispression
Dispersion denotes the extent to which the values are
dispersed or scatteled about the central value.
Arithmetic mean
Theoretically an infinite number of readings would
give the best results but practice only finite readings are available
variance
The variance is the just the mean square deviation,
without square root.
Median
Median is also used to indicate the most probable
value of the measured quantity when a set of readings
are taken.
For
example...73.7°C,78.9°C,74.8°C,75.8°C,75.5°C,75.7°
C,75.9°C,77.0°C,77.5
mode
Mode is the value which occurs most frequently in a
observation and around which other items of the set cluster
The analysis of the measurement data is
necessary to obtain the probable true
value of the measured quantity.