Z is a standard normal random variable.What is the value of z if the area to the right of z is 0.9803?
A)-2.06
B)0.4803
C)0.0997
D)3.06

Question

Z is a standard normal random variable.What is the value of z if the area to the right of z is 0.9803?​
A)​-2.06
B)​0.4803
C)​0.0997
D)​3.06

Quizplus · Accepted Answer

The area to the right of z = 0.9803 corresponds to the area to the left of z being 1 - 0.9803 = 0.0197. Looking up this area in the standard normal distribution table or using a calculator to find the z-score gives z = -2.06.

Z Is a Standard Normal Random Variable