NeoCal User Guide
Mean and Standard Deviation
The mean and standard deviation calculations are based upon the
values accumulated in the statistical registers. These buttons are
used to perform the calculations:
-
calculates and displays the mean (average) of
the x values.
-
calculates and displays the mean (average) of
the y values.
-
calculates and displays the weighted mean of
the x values. The y values are used to determine the weight for the
corresponding x value.
-
calculates the standard deviation of the x and
y values and returns the results in the x and y registers, respectively.
-
calculates the population standard deviation
of the x and y values and returns the results in the x and y
registers, respectively.
Continuing the previous example,
- Press
to calculate the mean or average of
the x values (61.25).
- Press
to calculate the mean or average of
the y values (15.75).
- Press
to calculate the weighted mean of
the x values (76.11).
- Press
to calculate and display the standard
deviation of the x values (30.10).
- Press
to display the standard deviation
of the y values (10.69).