Casio fx-991EX User Manual

fx-991EX Quick Start Guide 23
To calculate a linear regression, press
i i1(Select Type).
Select option 2(y=a+bx).
A reminder that changing the type of statistics will clear previous
data appears.
Press p to conrm and Clear memory.
(Notice, the statistics are identical to those previously found.)
Enter the same 10 students’ height used previously making
use of the Frequency column. As each data point is inputted,
ClassWiz automatically assigns a default Frequency of 1. Edit a
Frequency by using the arrow keys to highlight it, then typing a
new Frequency followed by p.
Once all of the data points (x) and frequencies (Freq) have been
entered, press i3(1-Variable Calc) again to display the
1-Variable statistics.
REGRESSIONS
STATISTICS

Casio fx-991EX Specifications

General

Type	Scientific
Cover	No
Form factor	Pocket
Control type	Buttons
Product color	Black, White
Battery type	LR44
Power source	Battery/Solar
Number of batteries supported	1
Digits	16 digits
Display type	LCD
Display resolution	192 x 63 pixels
Display number of lines	2 lines
Display number of characters	16
Storage media type	-
Operation	552
Conversion between	Decimal, Fraction, Percent
Convert angles from degrees to	Gradian, Radian
Random number/integer generator	Yes

Weight and Dimensions

Depth	165.5 mm
Width	77 mm
Height	11.1 mm
Weight	90 g