The Ages of Students at a University Are Normally Distributed

question 17

Multiple Choice

The ages of students at a university are normally distributed with a mean of 21. What percentage of the student body is at least 21 years old?

• A) It could be any value, depending on the magnitude of the standard deviation
• B) 50%
• C) 21%
• D) 1.96%

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Definitions:

Peak Functioning

A state in which an individual performs to the best of their ability, experiencing optimal psychological functioning and achievement.

Secondary Sex Characteristic

Physical traits that emerge during puberty, unrelated to reproductive organs but distinguishing the sexes, such as breast development in females and facial hair in males.

Boys

Male children or adolescents before reaching the age of manhood.

Girls

Female children and adolescents, typically defined as individuals who are biologically female from birth until the onset of adulthood.