CITIZEN SR-270II - Manual (Page 13)

6
Example 43
Find A, B, and C for the following data using quadratic regression and
estimate y’ = ? for x = 58 and x’ =? for y =143
n 1 2 3
x 57 61 67
y 101 117 155
[ MODE ] 3 [ ]
Pwr Inv Quad
1
2 3
3 [ 2nd ] [ Scl ] [ = ] REGDEG
Scl
0.
57 [
,
] 101 [ DT ] 61 [
,
] 117 [ DT ] REGDEG
67 [
,
] 155 [ DT ] [ 2nd ] [ A ] [ = ] A
M 684.3
[ 2nd ] [ B ] [ = ] REGDEG
B
M 23.53333333
[ 2nd ] [ C ] [ = ] REGDEG
C
M
0.233333333
58 [ 2nd ] [
∧
y ] REGDEG
∧
y
M 104.3
143 [ 2nd ] [
∧
x ] REGDEG
∧
x
1
M 65.36790453
[ 2nd ] [
∧
x ] REGDEG
∧
x
2
M 35.48923833
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