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火星人 · 2023年10月21日

老师

NO.PZ2022123001000067

问题如下:

A company has an unsecured line of credit and needs to maintain its EBIT-to-interest coverage ratio greater than 2.0. Its EBIT is estimated to be between $36 million and $48million, with all values equally likely. If the forecasted interest charge for the year is $20million, the probability that EBIT/interest will be more than 2.0 is closest to:

选项:

A.

66.7%

B.

61.5%

C.

33.3%

解释:

The EBIT-to-interest ratio is equal to 2.0 when the EBIT is $40 million. Given that the values between $36 million and $48 million are equally likely, the probability of the ratio being equal to or less than 2.0 is 33.3% (= [$40 million – $36 million]/[$48 million – $36 million]). Consequently, the probability of the ratio being greater than 2.0 is 66.7% (i.e., 1 – Probability of the ratio being equal to or less than 2.0).

麻烦老师翻一下,没看明白

1 个答案

星星_品职助教 · 2023年10月22日

同学你好,

如果EBIT-to-interest coverage ratio=2.0(即EBIT/Interest=2.0),又已知interest=20m,则说明此时EBIT是40m。EBIT/Interest>2.0的概率就是EBIT>40的概率。

又已知EBIT的范围是从36m到48m。所以,EBIT>40的概率就是 从40到端点48的那一段(8m),除以整个区间的总长度48-36=12m。

8/12=66.67%