Casio FX 260 User Manual - Page 20
Statistical Calculations SD Mode - standard deviation
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θ A N RAD 1.047197551 kPermutation • Example: To determine how many different 4-digit values can be produced using the numbers 1 through 7. 7 A m 4 = 840. kCombination • Example: To determine how many different 4-member groups can be organized in a group of 10 individuals. 10 A n 4 = 210. Statistical Calculations (SD Mode) • Press F l to enter the SD Mode for statistical calculations using standard deviation. • If FIX or SCI is on the display, press F 9 first. • Data input always starts with A u. • Example: To calculate nҀ1, n, o, n, ⌺x, and ⌺x2 for the following data : 55, 54, 51, 55, 53, 53, 54, 52. Enter SD Mode. F l SD 0. - 18 -
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— 18 —
θ
A
N
k
Permutation
•
Example:
To determine how many different 4-digit values
can be produced using the numbers 1 through 7.
7
A
m
4
=
k
Combination
•
Example:
To determine how many different 4-member
groups can be organized in a group of 10 individuals.
10
A
n
4
=
Statistical Calculations (SD Mode)
• Press
F
l
to enter the SD Mode for statistical calcula-
tions using standard deviation.
•
If FIX or SCI is on the display, press
F
9
first.
•
Data input always starts with
A
u
.
•
Example:
To calculate
³
n
²
1
,
³
n
,
o
,
n
,
´
x
, and
´
x
2
for the
following data : 55, 54, 51, 55, 53, 53, 54, 52.
Enter SD Mode.
F
l
840.
210.
0.
SD
RAD
1.047197551