CITIZEN SR-281 EN - Manual (Page 31)

File name : SR17E-E.doc
Date: 2003/10/8 Trimmed Size : 140 x 75 mm SCALE 1 : 1
-E31-
DEG STAT
C P K
[ ]
0. 7 2 5 9 0 9 9 1 2 6 8
¾ Find a, b and r for the following data using linear regression and
estimate x = ? for y =573 and y = ? for x = 19.
Data item 15 17 21 28
FREQ. 451 475 525 678
DEG STAT
1– V A R L I N L O G
[ MODE ] 2 [ ]
DEG STAT
D A T A 4 = 2 8 ,
[ ] [ DATA ] 15 [ ] 451 [ DATA ]
17 [ ] 475 [ DATA ] 21 [ ] 525
[ DATA ] 28 [ ] 678
6 7 8
REG
DEG STAT
a
[ 2nd ] [ a ]
1 7 6 . 1 0 6 3 2 9 1 1 4
REG
DEG STAT
b
[ 2nd ] [ b ]
1 7 . 5 8 7 3 4 1 7 7 2 2
REG
DEG STAT
r
[ 2nd ] [ r ]
0 . 9 8 9 8 4 5 1 6 4 1 3
REG
DEG STAT
x ’ 5 7 3
573 [ x ’ ]
2 2 . 5 6 7 0 0 7 3 4 1 3
REG
DEG STAT
y ’ 1 9
19 [ y ’ ]
5 1 0 . 2 6 5 8 2 2 7 8 5
REG
Deleting data
The method to delete data depends on whether you have already
stored the data by next pressing [ DATA ] key or not.
To delete data you just input but have not yet stored it by next pressing
[ DATA ] , simple press [ CE ].
To delete data that you have already stored by next pressing [ DATA ] ,
(A) To delete single–variable data using the following syntaxes :
# < x value > [ 2nd ] [ DEL ]