现有30个零件,需从中抽取10个进行检查,问如何采用简单抽样得到一个容量为10的样本?
运用抽签的方法(依次编号,随机抽取10个即可).
Financing for a large construction project was provided by a group of banks. When the money was gone before the project was completed, the banks approved additional loans. Now, with funds used up again and completion still not at hand, the banks refuse to extend further loans, although without those loans, the project is doomed. Which of the following, if true, best explains why the bank’s current reaction is different from their reaction in the previous instance of depletion of funds ?()
A.The banks have reassessed the income potential of the completed project and have concluded that total income general would be less than total interest due on the old plus the needed new loans.
B.The banks have identified several other projects that offer faster repayment of the principal if loans are approved now to get those projects started.
C.The banks had agreed with the borrowers that the construction loans would be secured by the completed project.
D.The cost overruns were largely due to unforeseeable problems that arose in the most difficult phase of the construction work.
E.The project stimulated the development and refinement of several new construction techniques, which will make it easier and cheaper to carry out similar projects in the future.
下列哪一项不属于平安险的责任范围()。
A.被保险货物在运输途中由于恶劣气候、雷电、海啸、地震、洪水等自然灾害造成整批货物的全部损失或推定全损
B.被保险货物由于恶劣气候、雷电、海啸、地震、洪水等自然灾害所造成的部分损失
C.由于运输工具遭受搁浅、沉没、触礁、互撞、与流冰或其他物体碰撞,以及失火、爆炸等意外事故造成货物的全部或部分损失
D.在运输工具已经发生搁浅、触礁、沉没、焚毁等意外事故的情况下,货物在此前后又在海上遭受恶劣气候、雷电,海啸等自然灾害所造成的部分损失