X Is a Normally Distributed Random Variable with a Mean

question 58

Multiple Choice

X is a normally distributed random variable with a mean of 9.0 and a standard deviation of 3.00. Find the value x such that P(X < x) is equal to 0.86. (Note: the diagram is not necessarily to scale.)

• A) 12.24
• B) 10.47
• C) 13.95
• D) 9.00

---

Definitions:

Projective Tests

Psychological assessment tools that use ambiguous stimuli to elicit responses reflecting aspects of an individual's personality.

American Personality Psychology

A branch of psychology that focuses on the study, assessment, and understanding of individual differences in personality within the cultural context of the United States.

Gordon Allport

A pioneering psychologist known for his contributions to personality theory and the psychology of prejudice.

Carl Rogers

An influential American psychologist known for his development of client-centered therapy and his contributions to humanistic psychology.