Casio fx-5800P - Manual (Page 82)

E-81
¯ x z7(STAT) 2(VAR) 2
Obtains the mean of the sample x -data.
x
σ
n
z7(STAT) 2(VAR) 3
Obtains the population standard deviation of the sample x -data.
x
σ
n –1
z7(STAT) 2(VAR) 4
Obtains the sample standard deviation of the sample x -data.
¯ y z7(STAT) 2(VAR) 5
Obtains the mean of the sample y -data.
y
σ
n
z7(STAT) 2(VAR) 6
Obtains the population standard deviation of the sample y -data.
y
σ
n –1
z7(STAT) 2(VAR) 7
Obtains the sample standard deviation of the sample y -data.
y
σ
n –1
n – 1
=
Σ
(y
i
– y ) 2
Sum Commands
ƙx 2 z7(STAT) 2(VAR) c1
Obtains the sum of squares of the sample x -data.
Σ x 2
=
Σ x
i
2
ƙx z7(STAT) 2(VAR) c2
Obtains the sum of the sample x -data.
Σ x
=
Σ x
i
o
Σ
x
i
n
= o
Σ
x
i
n
=
x
σ
n
n
=
Σ(x
i
– o) 2
x
σ
n
n
=
Σ(x
i
– o) 2
x
σ
n –1
n – 1
=
Σ
(x
i
– o) 2
x
σ
n –1
n – 1
=
Σ
(x
i
– o) 2
p
Σy
i
n
= p
Σy
i
n
=
y
σ
n
n
=
Σ
(y
i
– y) 2
y
σ
n
n
=
Σ
(y
i
– y) 2