问题如下图:
选项:
A.
B.
C.
D.
解释:
感觉c选项说的if 和 then跟解析里面说的是相反的呢,不是应该lnx是normal才有,x是lognormal吗,c好像是反过来的呢
NO.PZ2016062402000010 问题如下 Whiof the following statements best characterizes the relationship between the normanlognormal stributions? The lognormstribution is the logarithm of the normstribution. If the naturlog of the ranm variable X is lognormally stribute then X is normally stribute If X is lognormally stribute then the naturlog of X is normally stribute The two stributions have nothing to with one another. X is saito lognormally stributeif its logarithm Y = ln(X) is normally stribute 如题
请问A什么意思?为什么错误?
是不是互为因果,可以颠倒啊。
这题不明白为什么,请一下,答案说反了啊,