If Z is a standard normal random variable, then P(-1.25 Z -0.75) is:
A) 0.6678
B) 0.1056
C) 0.2266
D) 0.1210
E) 0.3482

Question

If Z is a standard normal random variable, then P(-1.25  Z  -0.75) is:
A) 0.6678 
B) 0.1056 
C) 0.2266 
D) 0.1210 
E) 0.3482

Quizplus · Accepted Answer

We need to find the probability of Z being between -1.25 and -0.75. Using a standard normal distribution table, we can find the area under the curve between these points to be 0.1210, which is the probability that Z is between -1.25 and -0.75. Therefore, the answer is D.

If Z Is a Standard Normal Random Variable, Then P(-1