Citizen SR-270N User Manual Page 14
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Standard Deviation Calculation
Use the SD mode for standard deviation calculations.
• Always make sure you clear statistical memory by [ 2nd ] [ Scl ]
before preforming standard deviation calculation.
• Individual data can be input using [ DT ] ; To delete data you just
input, please press [ 2nd ] [ CL ]. Multiple data of the same value
can be input using [ 2nd ] [
；
]. For example, to input the data 15
seven times, press 15 [ 2nd ] [
；
] 7 [ DT ].
• The values of the statistical variables depend on the data you in-
put. You can recall them by the key operations shown in the below
table. See Example 41.
[ RCL ] + [ A ]
x
_
[ 2nd ] + [ x
_
]
[ RCL ] + [ B
]
X
σ
n
[ 2nd ] + [
X
σ
n
]
n
[ RCL ] + [ C
]
X
σ
n-1
[ 2nd ] + [
X
σ
n-1
]
Regression Calculation
Use the REG mode for regression calculations.
Press [ MODE ] 3 to enter the REG menu and then choose one of
the six regression types by pressing the corresponding argument
value, as follow :
Lin Log Exp
1 2 3
Pwr Inv Quad
1 2 3
⎯⎯⎯←
←][
⎯⎯→⎯
→][
Lin Linear Regression y = A + B x
Log Logarithmic Regression y = A + B lnx
Exp Exponential Regression y = A • e
Bx
Pwr Power Regression y = A • x
B
Inv Inverse Regression y = A +
Quad Quadratic Regression y = A + B x + C x
2
• Always make sure you clear statistical memory by [ 2nd ] [ Scl ]
before preforming regression calculation.
• Individual data can be input using [ DT ] ; To delete data you just
input, please press [ 2nd ] [ CL ]. Multiple data of the same value
can be input using [ 2nd ] [
；
]. For example, to input the data 40
and 55 ten times, press 40 [
，
] 55 [ 2nd ] [
；
] 10 [ DT ].
- Table of Contents 2
- General Guide 3
- Contrast adjustment 4
- Display readout 4
- Before starting calculation 5
- Basic Calculation 9
- Scientifi c Calculation 11
- Regression Calculation 14
- CONTENIDOS 16
- Guía General 17
- Ajuste del contraste 18
- Lectura de la visualización 18
- Antes de empezar los cálculos 19
- Función de respuesta 20
- Cálculo Básico 24
- Función del cálculo continuo 25
- Cálculo Científi ca 26
- Cálculo de Regresión 28
- Guia Geral 31
- Ajuste de Contraste 32
- Leitura do mostrador 32
- Antes de começar cálculos 33
- Cálculo básico 38
- Calculadora científi ca 39
- Cálculo de fração 40
- Cálculo de regressão 42
- Inhaltsverzeichnis 44
- Allgemeine Hinweise 45
- Einstellung des Kontrats 46
- Bildschirmanzeige 46
- Vor dem Rechnen 47
- Rechnen mit dem Speicher 49
- Grundrechnungen 52
- Wissenschaftlicher Rechner 54
- Trigonometrische und invers 55
- trigonometrische Funktionen 55
- Standardderivationsrechnung 57
- Regressionsrechnung 57
- Sommaire 59
- Guide Général 60
- Ligne de Résultat 61
- Ajustement de Contraste 61
- Lecture d’Affi chage 61
- Avant de Commencer le Calcul 62
- Sexagésimale 66
- Transformation de la Décimale 66
- Calcul de Base 67
- Fonction de Calcul Continu 68
- Fonction de Réponse 68
- Calculatrice Scientifi que 69
- Calcul de Dérivation Standard 71
- Calcul de Régression 72
- Guida Generale 75
- Regolazione del Contrasto 76
- Display readout 76
- Selezione di Modalità 77
- Usando tasti “2nd" 77
- Cursore 77
- Funzione Replay 78
- Calcoli di Memoria 78
- Stack 79
- Ordine delle operazioni 79
- Accuratezza e capacità 79
- Calcoli di Base 81
- Calcolo della percentuale 82
- Formati di Visualizzazione 82
- Calcolo Scientifico 83
- Calcolo di Regressione 86
- Algemene inleiding 89
- Het contrast bijregelen 90
- Het beeldscherm 90
- Een modus selecteren 91
- Cursor 91
- De herhaalfunctie 92
- Foutieve invoer weergeven 92
- Het stapelgeheugen 93
- (n is een geheel getal) 94
- Foutmeldingen 95
- Basisbewerkingen 96
- Doorlopend berekenen 97
- Antwoordfunctie 97
- Bewerkingen met breuken 98
- Hoekconversie 98
- Regressie berekenen 100
- SCALE 2:1 2010/7/14 101
- Videnskabelig lommeregner 102
- Generel vejledning 103
- Displayets elementer 104
- Valg af mode (tilstand) 105
- Markøren 105
- Gentagelsesfunktionen 106
- Hukommelsesberegning 106
- Stak 107
- Operationsrækkefølge 107
- Nøjagtighed og kapacitet 107
- Grundlæggende beregninger 109
- Aritmetiske beregninger 110
- Parentesberegninger 110
- Procentberegning 110
- Displayformater 110
- Videnskabelige beregninger 111
- -Da 11 112
- Standardafvigelsesberegning 113
- Regressionsberegning 114
- -Da 14 115
- Содержание 116
- Основное руководство 117
- Строка результата 118
- Индикатор Значение 118
- Перед началом вычислений 119
- Порядок выполнения операций 122
- БАЗОВЫЕ ВЫЧИСЛЕНИЯ 124
- Инженерный вычисление 126
- Вычисления с дробями 127
- Обращение угловых единиц 127
- 128
- Базовые производные операции 129
- ВЫЧИСЛЕНИЯ С УРАВНЕНИЯМИ 129
- Kalkulator naukowy 131
- Instrukcja Obsługi 132
- Odczyt wyświetlacza 133
- Zanim rozpoczniesz obliczenia 134
- Stosy pamięci 136
- Kolejność operacji 136
- Obliczenia podstawowe 139
- Działania na ułamkach 141
- Obliczenia regresji 143
- Example 1 145
- Example 2 145
- Example 3 146
- Example 4 146
- Example 5 147
- Example 12 149
- Example 13 149
- Example 24 152
- Example 25 152
- Example 26 152
- Example 27 152
- Example 42 156
- Example 43 157
- C-Type(Scientific)135x75mm 159
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