A Standard Normal Distribution Has the Following Characteristics

question 30

Multiple Choice

A standard normal distribution has the following characteristics:

• A)the mean and the variance are both equal to 1
• B)the mean and the variance are both equal to 0
• C)the mean is equal to the variance
• D)the mean is equal to 0 and the variance is equal to 1
• E)the mean is equal to the standard deviation

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Definitions:

Allele

One of any number of alternative forms of the DNA sequence of the same locus.

Ray-Finned Teleost

A group of fish, characterized by their fin structure, which is supported by bony spines known as rays.

Astyanax

A genus of small freshwater fish widely used in scientific research, particularly in studies of development and genetics.

Parallel Evolution

Refers to independent evolution of similar traits, starting from a similar ancestral condition.