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13 - PL© Fast ČR a. s.
W poniższej tabeli zostały podane przyciski służące do wywoływania wyników regresji kwadratowej:
 Wartości podane w powyższych tabelach mogą być wykorzystywane w wyrażeniach w ten sam
sposób, w jaki wykorzystywane są zmienne.
Regresja liniowa
 Do obliczenia regresji liniowej należy wykorzystać wzór
 Przykład: Zależność ciśnienia atmosferycznego od temperatury:
 Przeprowadź regresję liniową w celu określenia relacji regresji
i współczynnika korelacji dla danych z tabeli (Temperature =
temperatura; Atmospheric Pressure = ciśnienie atmosferyczne;).
Następnie skorzystaj z wzoru regresji w celu obliczenia ciśnienia
atmosferycznego przy temperaturze 18 °C oraz temperatury przy
ciśnieniu 1 000 hPa. W końcu oblicz współczynnik trendu (r2)
i kowariancji.
W trybie REG:
Dzięki wielokrotnemu wciskaniu przycisku DT na wyświetlaczu zostanie pokazana liczba wprowad-
zonych danych (wartość n).
współczynnik regresji A
współczynnik regresji B
współczynnik korelacji
ciśnienie atmosferyczne przy 18 °C
temperatura przy ciśnieniu 1 000 hPa
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