THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION

question 130

Multiple Choice

THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Let the random variable X follow a normal distribution with a mean of 61.7 and a standard deviation of 5.2.
-What proportion of the total area under the normal curve is within ± two standard deviations of the mean?

• A)About 50%
• B)About 68%
• C)About 95%
• D)About 99.7%

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Definitions:

Representative Sample

A subset of a population that accurately reflects the members of the entire population, used in statistical analysis to make inferences about the whole group.

Interviewing Style

The method or approach a person uses when asking questions and interacting with interviewees, which can significantly influence the responses given.

Anorexia Nervosa

An eating disorder characterized by an obsessive fear of gaining weight, leading to severe restriction of food intake and self-imposed starvation.

Perfectionists

Individuals who strive for flawlessness and set excessively high performance standards, often accompanied by critical self-evaluations and concerns regarding others' evaluations.