For some positive value of X, the probability that a standard normal variable is between 0 and +1.5X is 0.4332. What is the value of X?
A) 0.50
B) 1.00
C) 1.50
D) 0.10

Question

Quizplus · Accepted Answer

The probability that a standard normal variable is between 0 and +1.5X is 0.4332, which corresponds to the cumulative probability from 0 to a z-score of approximately 1.00. Therefore, X must be 1.00 to make 1.5X equal to 1.5.

For Some Positive Value of X, the Probability That a Standard