Sign in
|
English
|
Terms of Use
Dictionary
Forum
Contacts
Chinese
⇄
Afrikaans
Arabic
Catalan
Dutch
English
Estonian
Finnish
French
German
Greek
Hungarian
Icelandic
Italian
Korean
Lithuanian
Polish
Portuguese
Russian
Spanish
Turkish
G
o
o
g
l
e
|
Forvo
|
+
斯坦两级
阶段
样本法
math.
Stein's two sample procedure
Add
|
Report an error
|
Get short URL
|
Language Selection Tips
