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Casio FX-260SOLAR User Manual

Page 33

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n

!

(n

Ҁr)!

n

!

n

!(n

Ҁr)!

Permutation

• Input range: n

ͧ r ͧ 0 (n, r : integers)

• Formula: nPr

҃

Combination

• Input range: n

ͧ r ͧ 0 (n, r : integers)

• Formula: nCr

҃

Population Standard Deviation

␴

n

҃

n

⌺

i

҃ 1

n

(xi – x)

2

҃

n

⌺x

2

– (

⌺x)

2

/

n

Sample Standard Deviation

␴

n

–

1

҃

n

– 1

⌺

i

҃ 1

n

(xi – x)

2

҃ ⌺

x

2

– (

⌺x)

2

/

n

n

– 1

Arithmetic Mean

o

҃

n

⌺

i

҃ 1

n

xi

҃ ⌺

x

n

This manual is related to the following products:
See also other documents in the category Casio Calculators, organizers: