题目内容
在大样本条件下，已求得一元线性回归方程，并给定自变量数值X0，做出点估计值$0y。若再结合用2倍值乘以估计标准误Sy，作区间预测，这时预测结果的概率保证程度是()。
查看答案
搜索结果不匹配？点我反馈
更多问题
The credit card serves as a medium of exchange in the wide range of transactions.
We can learn from the second part of the passage that there are some equations of market which can explain the demand and supply of the currency of a country.
Which of the following statements is False according to the text？
The range of transactions that might be included in computerized credit card transactions is large. Taxicabs, newspaper stands, vending machines, public transportation, street vendors, and highway toll stations, to name but a few places where cash is used, could all, be provided with small machines that store information about purchases. These data sources could be linked into computer terminals at convenient locations or could be entered synchronously with the purchase through centralized communication networks. A centralized electronic funds transfer system could even instantaneously charge the purchases against the buyers' bank accounts and credit the funds to the sellers bank accounts.
Both lines of unutilized credit card credit and unutilized demand deposit overdraft facilities allow customers to use more money than they have on deposit.
微信支付 
支付宝支付