If Z Is a Standard Normal Random Variable, Then P(-2

question 42

Multiple Choice

If Z is a standard normal random variable, then P(-2.28  Z  -1.96 ) is:

• A)0.0250.
• B)0.0146.
• C)−0.0146.
• D)0.0137.

---

Definitions:

Law of Large Numbers

A statistical principle that states that as a sample size grows, its mean gets closer to the average of the whole population.

Blood Type

A method of classifying blood by examining the presence or lack of certain inherited antigenic substances on red blood cell exteriors.

Joint Frequency Distribution

A statistical representation showing the frequency of occurrences for combinations of two or more categories or variables.

Blood Type B

A blood group classification determined by the presence of antigen B on the surface of red blood cells.