HP 9g-Grafenberechner - Manuel (Page 142)

D-58
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Voorbeeld 45
In de gegevens van voorbeeld 44, verander Y
1
= 4 in Y
1
= 9 en X
2
= 5
in X
2
= 8, vind vervolgens Sx = 2.645751311
[ DATA ]
[ ] [ ] 9
[ ] 8
[ 2nd ] [ STATVAR ] [ ] [ ]
Voorbeeld 46
Voer de data a
x
= 2, X
1
= 3, FREQ
1
= 2, X
2
= 5 , FREQ
2
= 9, X
3
= 12,
FREQ
3
= 7 in, vind vervolgens t = –1.510966203, P( t ) = 0.0654, Q( t ) =
0.4346, R ( t ) =0.9346