In coin tossing experiments, we can use the binomial distribution to characterize the number of tosses to obtain the first head $(5$ points$).$

If a person with a utility function $u(x)=(x+100{)}^2,$ then he is risk$-$seeking. $(5$ points$).$

In two$-$stage stochastic program with recourse method, the first decisions are made with complete knowledge of the future $(5$ points$)$

The L$-$shaped method is an iterative algorithm. $(5$ points$)$