Casio fx-5800P User Manual page 82

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