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1
R 中公式汇总
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R 统计学/一些重要的抽样分布
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来自维基教科书,开放的书籍,面向开放的世界
<
R 统计学
R 中公式汇总
[
编辑
|
编辑源代码
]
公式编号
名称
公式
R 中的公式
5.3.1
样本均值的 z 变换
Z
=
X
¯
−
μ
x
σ
/
n
{\displaystyle Z={\frac {{\bar {X}}-\mu _{x}}{\sigma /{\sqrt {n}}}}}
示例
5.4.1
两个均值之差的 z 变换
Z
=
(
X
¯
1
−
X
¯
2
)
−
(
μ
1
−
μ
2
)
σ
1
2
n
1
+
σ
2
2
n
2
{\displaystyle Z={\frac {({\bar {X}}_{1}-{\bar {X}}_{2})-(\mu _{1}-\mu _{2})}{\sqrt {{\frac {\sigma _{1}^{2}}{n_{1}}}+{\frac {\sigma _{2}^{2}}{n_{2}}}}}}}
示例
5.5.1
样本比例的 z 变换
Z
=
p
¯
−
p
p
(
1
−
p
)
n
{\displaystyle Z={\frac {{\bar {p}}-p}{\sqrt {\frac {p(1-p)}{n}}}}}
示例
5.5.2
当 x < np 时,连续性校正
Z
c
=
x
+
.5
n
−
p
p
q
/
n
{\displaystyle Z_{c}={\frac {{\frac {x+.5}{n}}-p}{\sqrt {pq/n}}}}
示例
5.5.3
当 x > np 时,连续性校正
Z
c
=
X
+
.5
n
−
p
p
q
/
n
{\displaystyle Z_{c}={\frac {{\frac {X+.5}{n}}-p}{\sqrt {pq/n}}}}
示例
5.6.1
两个比例之差的 z 变换
{\displaystyle }
示例
符号键
类别
:
书籍:R 统计学
华夏公益教科书