Normal Distribution Test

Unit Test #70

Select your answers to the following 5 questions from the pop-up menus in the right hand column. Clicking the "Begin Test Again" button will clear all the answers.

 

 

Q1:
 If the random variable Z has a standard normal distribution, find the probability that Z is greater than 1.3

A. 0.4032

B. 0.0968

C. 0.5968

D. 0.9032

Answer 1:

 

 
Q2:

The random variable Z is normally distributed with a mean of 0 and a standard deviation of 1.

Find P(Z > -1.7)

 

A. 0.9554

B. 0.4554

C. 0.0446

D. 0.5446

Answer 2:

 

 
Q3:

The random variable Z has a standard normal distribution.

Find P(0 < Z < 1.35)

A. 0.0885

B. 0.5885

C. 0.4115

D. 0.9115

Answer 3:

 

 
Q4:
 If the random variable Z has a standard normal distribution find P(-1 < Z < 1).

A. 0.1587

B. 0.3174

C. 0.6826

D. 0.3413

Answer 4:

 

 
Q5:
 The continuous random variable Z has the standard normal distribution. Find P(Z ≥ 0.8)

A. 0.2881

B. 0.7881

C. 0.7119

D. 0.2119

Answer 5: