问题如下:
Among 600 workers, 25 workers plan to retire next year. On a random drawn, what is the probability that select a worker who plans to retire next year?
选项:
A.0.042.
B.0.04.
C.0.002.
解释:
A is correct
我理解题目的意思是,600个工人明年有25人退休。随机抽取的话,选一个人的概率。应该是指在25人里选一个人的概率,1/25=0.04,选B