One of my students is selling the solutions to my problem sets, and has
decided to accept the first oer exceeding $100. Assume that the oers are independent
and identically distributed random variables with cumulative distribution function F.
Suppose that only the number of oers received before the solution is sold is recorded.
Formulate a statistical model for the data.
求解，跪求跪求，毫无头绪的人在等待中。。。