【单选题】从2000名学生中按不重复抽样方法抽取了100名进行调查,其中有女生45名,则样本比例的抽样平均误差为( )
【单选题】Passage Five Billy Joel was born on Long Island, in New York State. He began taking piano lessons at an early age and joined his first rock band when he was fourteen. After playing in a number of Long...
A.
when he joined his first rock band
B.
after he was named 'Best New Male Vocalist'
D.
before he was fourteen years old
【简答题】It happened towards evening, when I was resting in a cafe. I 36 a pair of newly bought white leather shoes, which were rather expensive. Then 37 came to me. He was in an unfit shirt, 38 pale and weak...
【单选题】从2000名学生中按不重复抽样方法抽取100学生进行调查,其中有女生45名,则样本成数的抽样平均误差为( )
【简答题】收到宏达公司前欠货款 100 000元,收到银行收账通知单。(2分)
【单选题】从2000名学生中按不重复抽样方法抽取了100名进行调查,其中有女生45名,则样本成数的抽样平均误差为( )。
【简答题】It happened towards evening, when I was resting in a cafe. I a pair of newly bought white leather shoes, which were rather expensive. Then came to me. He was in an unfit shirt, pale and weak. He looke...
【单选题】从2000名学生中按不重复抽样方法抽取了100名进行调查,其中有女生45名,则样本比例的抽样平均误差为
【单选题】宏达公司3月末总账账户余额如下: 银行存款335 000元库存现金5 000元 原材料100 000元短期借款50 000元 应付账款10 000元实收资本300 000元 资本公积80 000元 该公司4月份发生下列经济业务: (1)收到投资人追加投资100 000元,存入银行。 (2)购入原材料一批,计20 000元,料已入库,款未付。 (3)以银行存款支付前欠购货款10 000元。 (4)从...
【单选题】从2000名学生中按不重复抽样方法抽取了100名进行调查,其中有女生45名,则样本成数的抽样标准误为