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单词
factorial moment
释义
factorial moment
factorial moment
[
fak‚tȯr·ē·əl ′mō·mənt
]
(statistics)
The
n
th factorial moment of a random variable
X
is the expected value of
X
(
X
-1) (
X
-2) ⋯ (
X-n
+1).
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更新时间:2025/11/8 9:57:23