Warning: file_put_contents(/www/wwwroot/ppbbbu/5356789.com/cache/05e8fd09610c2cb6702d82e16475d72e.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/5356789.com/index.php on line 55 simple random sampling with replacement是什么意思，simple random sampling with replacement的翻译，simple random sampling with replacement音标、读音、用法和例句_零六五六深蓝词典
Firstly, we give an effective sampling design: a simple random case sample with replacement is drawn out of all cases; 首先，我们设计了一个有效的抽样方案：采取简单随机抽样从病例组抽取样本；