Given a normal random variable x with mean 
and standard deviation 
, the variance of the standard normal random variable z associated with x is 0.
Definitions:
Experiment
A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
Prenatal Development
The process of growth and development within the womb from conception to birth.
Stages
Distinct phases within a development process or sequence of events through which individuals or systems pass.
Primary Sexual Characteristics
These are the physical features directly involved in reproduction, such as the ovaries in females and the testes in males.
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