Let Z Be a Normal Random Variable with Mean 0

question 40

Multiple Choice

Let z be a normal random variable with mean 0 and standard deviation 1.The 50^th percentile of z is ____________.

• A) 0.6700
• B) -1.254
• C) 0.0000
• D) 1.2800
• E) 0.5000

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Definitions:

Representativeness

A cognitive heuristic where an individual judges the probability or frequency of an event by how much the event resembles the typical case.

Availability

The state of being able to be used or obtained; accessibility.

External Locus

A belief that outcomes of events are determined by external forces or fate, rather than one's own actions.

Learned Helplessness

A condition in which a person suffers from a sense of powerlessness, arising from a traumatic event or persistent failure to succeed.