Sharp EL-5230 Operation Manual page 70

Chapter 4: Statistical Calculations
Example
DATA
x y
2 5
2 5
12 24
21 40
21 40
21 40
15 25
a
=
b =
r =
sx =
sy
=
x=3 → y'=?
y=46 → x' =?
DATA
x y
12 41
8 13
5 2
23 200
15 71
a =
b =
c
=
x=10 → y' =?
y=22 → x' =?
68
Key operations
@ P 2 y
b 1 1
2 , 5 _
_
12 , 24 _
21 , 40 , 3 _
15 , 25 _
I 2 0 e
I 2 1 e
I 2 3 e
I 0 2 e
I 0 7 e
3 I 2 5
46 I 2 4
@ P 2 y
b 1 2
12 , 41 _
8 , 13 _
5 , 2 _
23 , 200 _
15 , 71 _
I 2 0 e
I 2 1 e
I 2 2 e
10 I 2 5
22 I 2 4
Result
Stat 1 [LINE]
0.
DATA SET= 1.
DATA SET= 2.
DATA SET= 3.
DATA SET= 4.
DATA SET= 5.
a
= 1.050261097
b = 1.826044386
r = 0.995176343
sx =8.541216597
sy
=15.67223812
6.528394256
24.61590706
Stat 2 [QUAD]
0.
DATA SET= 1.
DATA SET= 2.
DATA SET= 3.
DATA SET= 4.
DATA SET= 5.
a
= 5.357506761
b
=-3.120289663
c = 0.503334057
y
= 24.4880159
≈¡ : 9.63201409
≈™ :-3.432772026