求英语帝解答外国大学统计问题,最好是有过程
问题描述：
求英语帝解答外国大学统计问题,最好是有过程
Q：At a small college,the probability that a student takes
physics and sociology is 0.092.The probability that a
student takes sociology is 0.73.Find the probability that
the student is not taking sociology.
答
直接1-0.73 0.27