For a standard normal random variable, find the probability that z exceeds the value -1.65.
A) 0.4505
B) 0.0495
C) 0.9505
D) 0.5495

Question

Quizplus · Accepted Answer

The probability that a standard normal random variable z exceeds -1.65 is the same as 1 minus the probability that z is less than or equal to -1.65. The cumulative probability for z ≤ -1.65 is approximately 0.0495, so the probability that z > -1.65 is 1 - 0.0495 = 0.9505.

For a Standard Normal Random Variable, Find the Probability That