开发者:上海品职教育科技有限公司 隐私政策详情

应用版本:4.2.11(IOS)|3.2.5(安卓)APP下载

jvniki · 2022年12月15日

怎么翻译呢,怎么知道是行还是列作为总和呢。

* 问题详情,请 查看题干

NO.PZ202106160300001102

问题如下:

The relative frequency of AA rated energy bonds, based on the total count, is closest to:

选项:

A.10.5% B.31.5% C.39.5%

解释:

A is correct. The relative frequency for any value in the table based on the total count is calculated by dividing that value by the total count. Therefore, the relative frequency for AA rated energy bonds is calculated as 85/806 = 10.5%.

B is incorrect because 31.5% is the relative frequency for AA rated energy bonds, calculated based on the marginal frequency for all AA rated bonds, so 85/(32 +25+85 +100 +28), not based on total bond counts.

C is incorrect because 39.5% is the relative frequency for AA rated energy bonds, calculated based on the marginal frequency for all energy bonds, so 85/(100+ 85 + 30), not based on total bond counts.

what is the difference between Clark’s current wealth planning and leaving all the money in Account 2?

1 个答案
已采纳答案

星星_品职助教 · 2022年12月17日

同学你好,

题干中规定的是“ based on the total count”,所以就需要把表格中所有的数字都加起来,计算出所有债券的总数。