问题如下图:
选项:
A.
B.
C.
解释:
老师好,这里的“in decimal form” 应该怎么理解,能不能给一种理解方式,好记忆一下。
何老师上课比较了两种方式:in decimal, 和in percentage, 我还是有点搞不太清楚。
求讲解。。。
谢谢老师。
NO.PZ2015120204000009 0.0138 (1.38 percent). 0.0203 (2.03 percent). C is correct. From the regression equation, Expectereturn = 0.0138 + -0.6486(-0.01) = 0.0138 + 0.006486 = 0.0203, or 2.03 percent.为什么是0.0138+而不是-呢?
0.0138 (1.38 percent). 0.0203 (2.03 percent). C is correct. From the regression equation, Expectereturn = 0.0138 + -0.6486(-0.01) = 0.0138 + 0.006486 = 0.0203, or 2.03 percent. 请问为什么bo直接使用表格给定的,而不像b1一样用公式把标准差带入计算一遍呢?
0.0138 (1.38 percent). 0.0203 (2.03 percent). C is correct. From the regression equation, Expectereturn = 0.0138 + -0.6486(-0.01) = 0.0138 + 0.006486 = 0.0203, or 2.03 percent. crease 1%不是乘以99%么?
0.0138 (1.38 percent). 0.0203 (2.03 percent). C is correct. From the regression equation, Expectereturn = 0.0138 + -0.6486(-0.01) = 0.0138 + 0.006486 = 0.0203, or 2.03 percent. 我其实做对了,但有个疑问,何老师讲的是如果题目中告诉是percent形式,則代入-1,事实上这题告诉是percent,但应该代入-1%啊