2027数学中等derivationmedium
Log Barrier Jensen Direction 7
题目
A utilization score explodes as it nears 1, so the convexity direction matters for stress design. Let u(x)=-ln(1-x) on x<1. If U is random and almost surely below 1, compare E[u(U)] and u(E[U]).
解题计时
0:00
提交作答时记录，用于后续平均用时统计。