Statistical Calculations; Mean And Standard Deviation - HP -32S Owner's Manual

4 | ENTER | 20
5 I ENTER I 20 [2+1
2^
1.0000
2.0000
Deletes and replaces
the first pair (20, 4 to
20, 5). Still two pairs
total.
Statistical Calculations
Once you have entered your statistical data, you can use the functions
in the STAT menu. Press Bl stat Ito display the STAT menu.
The STAT Menu
Menu Label
Description
{2}
The summation menu: n, 2x, 2y, 2x2, 2y2, 2xy. See "Sum
mation Statistics."
{*,?}
The mean menu: x, y and weighted x (xw). See "Mean and
Standard Deviation."
{s}
The standard-deviation menu: sx and sy. See "Mean and
Standard Deviation."
{L.R.} The linear-regression menu: curve-fitting (r, m, b) and linear
estimation (x, y). See "Linear Regression."
Mean and Standard Deviation
The Mean (x, y) Menu.
• Press Bl stat I{x,y} {x} for the arithmetic mean (average) of the
x-values.
Press Bl stat I{x,y} {y} for the arithmetic mean (average) of the
y-values.
156 11: Statistical Operations