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Calculations – Casio FX-CG10 User Manual

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5. Drawing Statistical Graphs, and Performing

Statistical and Regression Calculations

When you want to check the correlation between two sets of data (such as temperature and
the price of some product), trends become easier to spot if you draw a graph that uses one set
of data as the

x

-axis and the other set of data as the

y

-axis.

With the spreadsheet you can input the values for each set of data and draw a scatter plot or
other types of graphs. Performing regression calculations on the data will produce a regression
formula and correlation coefficient, and you can overlay a regression graph over the scatter
plot.

Spreadsheet

mode graphing, statistical calculations, and regression calculations use the

same functions as the Statistics mode. The following shows an operation example that is
unique to the Spreadsheet

mode.

k Example of Statistical Graph Operations (GRAPH Menu)

Input the following data and draw a statistical graph (scatter plot in this example).

0.5, 1.2, 2.4, 4.0, 5.2 (

x

-axis data)

–2.1, 0.3, 1.5, 2.0, 2.4 (

y

-axis data)

u To input data and draw a statistical graph (scatter plot)

1. Input the statistical calculation data into the spreadsheet.

• Here we will input the

x

-axis data into column A, and the

y

-axis data into column B.

2. Select the range of cells you want to graph (A1:B5).

3. Press

6( g) 1(GRAPH) to display the GRAPH menu, and then press 1(GRAPH1).

• This will produce a scatter plot of the data in the range

of cells you selected in step 2 of this procedure.

• The graph shown here is what is produced under initial

default Spreadsheet

mode settings. You can change

the configuration of graph settings on the screen that
appears when you press

6(SET) on the GRAPH

menu. For details see “General Graph Settings Screen
Operations” below.

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