Casio FX-991ES Appendix - Page 18
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#055 STAT 11(STAT)2(Data)e STAT c2= c2= 2= 2= 3= 4= 2= STAT A #056 11(STAT)4(Sum) STAT 1(Σx2)= STAT 11(STAT)4(Sum) 2(Σx)= #057 11(STAT)5(Var) STAT 1(n)= -17-
–17–
#055
1
1
(STAT)
2
(Data)
e
STAT
c
2=
c
2=
2=
STAT
2=
3=
4=
2=
A
STAT
#056
1
1
(STAT)
4
(Sum)
1
(
Σ
x
2
)
=
STAT
1
1
(STAT)
4
(Sum)
STAT
2
(
Σ
x
)
=
#057
1
1
(STAT)
5
(Var)
1
(n)
=
STAT