NO.PZ2015120604000094
问题如下:
Considering Z refers an random varible of the standard normal distribution, P(0≤Z≤1.65) is equal to ?
选项:
A.0.47.
B.0.46.
C.0.45.
解释:
C is correct.
From the standard normal distribution table, F(1.65) = 0.95. So P(0≤Z≤1.65) = F(1.65)-Z(0) = 0.95-0.5 = 0.45.
老师,请问本题问的是p(z),记得老师上课讲过p(z)是求密度函数啊,不是累积函数啊,但本题答案是按照F(z)累积函数求面积方法求解的,有点糊涂了哈。