40
11 STATISTICS TERMINOLOGY
Term Meaning
COEF OF VARIAT’N Coefficient of Variation. The
standard deviation divided by
the mean for a group of
readings, expressed as a
percentage.
HIGHEST READING The value of the maximum
thickness in a group of
readings.
LOWEST READING The value of the minimum
thickness in a group of
readings.
MEAN The average of a group of
readings; the sum of the
individual readings divided by
the number of readings.
NO. OF READINGS Number of Readings. The
running value for the number of
readings taken in a group. In
the case of the averaging or
counted average, the Number
of Readings is the number of
values recorded, not the total
number of readings taken.
STD DEVIATION Standard Deviation. A
statistical measure of the
spread of values in a group of
readings.
Op_456_2_English.book Page 40 Friday, February 17, 2006 3:35 PM
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