Formulas and Functions

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- DATE
- DATEDIF
- DATEVALUE
- DAY
- DAYNAME
- DAYS360
- EDATE
- EOMONTH
- HOUR
- ISOWEEKNUM
- MINUTE
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- MONTHNAME
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NORMDIST

NORMDIST 函數會傳回指定函數形式的正常分配。

NORMDIST(數字, 平均值, 標準差, 形式類型)

數字： 要估算的數值。

平均值： 代表事件發生之已知平均速率（算術平均數）的數字值。

標準差： 代表母群體標準差的數字值。 標準差必須大於 0。

形式類型： 指示要提供之指數函數形式數值的程式值。

累加形式（TRUE 或 1）： 傳回累加分配形式的數值。

機率密度形式（FALSE 或 0）： 傳回機率密度形式的數值。

附註

如果平均值為 0、標準差為 1，而形式類型為 TRUE，則 NORMDIST 傳回的值會與 NORMSDIST 傳回的累加標準常態分配相同。

範例

=NORMDIST(22, 15, 2.5, 1) 會傳回 0.997444869669572，累加分配形式。

=NORMDIST(22, 15, 2.5, 0) 會傳回 0.00316618063319199，機率密度形式。

也請參閱NORMINV NORMSDIST

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