Warning: flock() expects parameter 1 to be resource, boolean given in /www/wwwroot/www.chaziku.com/e/class/connect.php on line 5100
Warning: flock() expects parameter 1 to be resource, boolean given in /www/wwwroot/www.chaziku.com/e/class/connect.php on line 5105 statistics英英释意- 查字库
1. a branch of applied mathematics concerned with the collection and interpretation of quantitative data and the use of probability theory to estimate population parameters