问题如下:
Company ABC was incorporated on January 1, 2004. It has an expected annual default rate of 10%. Assuming a constant quarterly default rate, what is the probability that company ABC will not have defaulted by April 1, 2004?
选项:
A. 2.40%
B. 2.50%
C. 97.40%
D. 97.50%
解释:
ANSWER: C
The probability of survival for one year is . This gives a probability of surviving the first quarter of .
这题题目为什么不能用d的四次方等于10%算