... yes or no ost 如果有一天你有勇气 ; 想爱就爱 yes or no mark 是或否符号 Whether Yes Or No 无论正确或错误 ...
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yes-or-no mark 是或否符号
Explain the conception of the mark of yes or no and average number and its involution difference.
细说是非标志的概念、平均数及其方差。
Expound on the fact example: the interrelated degree of two marks of yes or on, sample estimate in the condition of two mark of yes or no.
以实际的例子阐述：两个是非标志的相关程度；两个是非标志相关条件下的抽样估计。
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