Speak at random瞎猜;順口胡說
talk at random漫話;漫無邊際的胡吹亂談;東拉西扯
Missing at Random在缺失機制是隨機缺失;這就引出了隨時缺失;或者隨機缺失
strew at random錯落
piling at random山堆法
Draw at Random任選
Missing Completely at Random和完全隨機缺失
test at random隨機檢驗
Not Missing At Random非隨機缺失;非隨機;隨機;與非隨機缺失