The Intelligence Quotient (IQ)test Scores for Adults Are Normally Distributed

question 53

Multiple Choice

The Intelligence Quotient (IQ) test scores for adults are normally distributed with a population mean of 100 and a population standard deviation of 15. What is the probability we could select a sample of 50 adults and find the mean of this sample is less than 95?

• A)0.0091
• B)0.9818
• C)0.4909
• D)0.9544

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Definitions:

Negative Information

Data or facts that produce adverse or undesirable impressions or expectations.

Depressive Schema

Cognitive patterns and beliefs that predispose individuals to perceive the world and themselves in a negative light, often associated with depression.

Learned Helplessness

The cognitive, motivational, and emotional deficits that follow a perceived lack of control over important aversive events.

Negative Schema

Persistent and pervasive patterns of thought that shape the way an individual interprets and understands the world, often leading to pessimistic views or expectations.