Statistics - Elcometer 331 SH Operating Instructions Manual

13 STATISTICS

Your Covermeter has a Statistics feature which calculates and displays a statistical analysis of
readings as they are taken.
Statistics values are also calculated for the readings within a batch and these values are stored in
the batch.
To enter a reading into the statistical analysis while you are taking measurements, press [ ].
Number of
Readings
Mean
Standard
Deviation
Coefficient of
Variation
Lowest
Reading
Highest
Reading
Under range
Low limit
/
Within limits
High limit
/
Over range
Blank
readings
Table 1: Calculated statistics values
The running value for the number of readings taken in a group.
The average of a group of readings; the sum of the individual
readings divided by the number of readings.
A statistical measure of the spread of values in a group of
readings.
The standard deviation divided by the mean for a group of
readings, expressed as a percentage.
The value of the lowest reading taken in a group.
The value of the highest reading taken in a group.
The number and percentage of readings under range.
The number and percentage of readings below the low limit.
The number and percentage of readings within limits.
The number and percentage of readings above the high limit.
The number and percentage of readings over range (or infinite).
Number and percentage of blank readings (skipped/not recorded/
deleted).
R
S
TATISTICS
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