The Mean of a Normal Probability Distribution Is 500 and the Standard

question 52

Multiple Choice

The mean of a normal probability distribution is 500 and the standard deviation is 10. About 95% of the observations lie between what two values?

• A)475 and 525
• B)480 and 520
• C)400 and 600
• D)350 and 650

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Definitions:

Women

Adult human females, distinguished biologically by reproductive and secondary sexual characteristics.

Percentage

A portion of 100 or a fraction expressed as a number out of 100, used to describe proportions quantitatively.

African American Women

Women identified with or belonging to the African American ethnic group in the United States.

HIV/AIDS

A virus that attacks the immune system (HIV) and the most advanced stage of infection, Acquired Immune Deficiency Syndrome (AIDS).