Given that Z is a standard normal variable, the value z for which P(Z z) = 0.2580 is:
A) 0.70
B) 0.758
C) -0.65
D) 0.242
E) -0.242

Question

Given that Z is a standard normal variable, the value z for which P(Z  z) = 0.2580 is:
A) 0.70 
B) 0.758 
C) -0.65 
D) 0.242 
E) -0.242

Quizplus · Accepted Answer

Since Z is a standard normal variable, we can use a Z-table to find the corresponding z-value for a given probability. Looking at the table, we find that the closest probability to 0.2580 is 0.2514, which corresponds to a z-value of -0.65. Therefore, the answer is choice C).

Given That Z Is a Standard Normal Variable, the Value