Sharp EL-738 Statistical Calculations and Variables, Single-variable statistical calculations

Editing statistical data

Change the previously entered data from page 65 as follows:

DATA

30

40

40

50

DATA

30

45

45

45

60

Procedure		Key operation			Display
Display the statistical	i				X1=
data.					3000
Change the “40, 2” data	ii		45	J	FRQ2=
set to “45, 3”.	i3 J				300
Delete “50”.	i.?				Stat —
					000
Add “60”.	60	J			DATA SET=

300

Statistical Calculations and Variables

The following results can be obtained for each statistical calcula- tion (refer to the table below):

Single-variable statistical calculations

Section results only.

Linear regression calculations

Section and results, except for coefficients c.

The estimate of y for a given x (estimate y´) and the estimate of x for a given y (estimate x´) can also be found.

Quadratic regression calculation

Section and results, and coefficients a, b, and c in the qua- dratic regression formula (y = a + bx + cx2). In quadratic regres- sion calculations, no correlation coefficient r can be obtained.

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