●●对数正态分布 Lognormal distribution Mean=3.547SD=1.03→1.5285.566 exp(1.528)=4.61eXp(5.566)=2614exp(3.547)=34.7对数正态分布Lognormal distribution Mean=3.547 SD=1.03 → 1.528 5.566 exp(1.528)=4.61 exp(5.566)=261.4 exp(3.547)=34.7