Statistics 2Var app
93
Here are the statistics displayed when you press
.
Plotting
Once you have entered your data (
M
), defined your
data set and your fit model (
Y
), you can plot your
data. You can plot up to five scatter plots at a time.
To plot statistical
data
1. In Symbolic view (
Y
), select (
) the data sets
you want to plot.
2. Adjust the plotting scale and range in the Plot Setup
view.
3. Press
P
. If you have not adjusted the Plot Setup
yourself, you can try
V
select
Auto Scale
.
Auto Scale can be relied upon to give a good starting
scale which can then be adjusted in the Plot Setup.
Tracing a Scatter
Plot
The numbers below the plot
indicate that the cursor is at
the first data point for
S1
, at
(1, 6). Press
>
to move to
the next data point and
display information about it.
Statistic
Definition
Mean of
y
- (dependent) values.
Σ
Y
Sum of
y
-values.
Σ
Y
2
Sum of
y
2
-values.
sY
The sample standard deviation of
the dependent column.
Y
The population standard deviation
of the dependent column.
serrY
The standard error of the
dependent column.
y
σ
Summary of Contents for 39gII
Page 1: ...HP 39gII graphing calculator user s guide Edition1 Part Number NW249 90001 ...
Page 2: ...Printing History Edition 1 November 201 1 ...
Page 32: ...22 Getting started ...
Page 58: ...48 Apps and their views ...
Page 70: ...60 Function app ...
Page 80: ...70 Solve app ...
Page 136: ...126 Polar app ...
Page 140: ...130 Sequence app ...
Page 148: ...138 Finance app ...
Page 152: ...142 Linear Solver app ...
Page 218: ...208 Matrices ...
Page 226: ...216 Notes and Info ...
Page 238: ...228 Variables and memory management ...
Page 318: ...308 Programming ...
Page 340: ...330 Reference information ...
Page 346: ...vi Product Regulatory Information ...