Use the Normal Distribution to Approximate the Desired Probability

question 4

Multiple Choice

Use the normal distribution to approximate the desired probability.
-The prizes that can be won in a sweepstakes are listed below together with the chances of winning each one: $5300 (1 chance in 8600) ; $2500 (1 chance in 5300) ; $700 (1 chance in 3500) ; $200 (1 chance in 2800) . Find the expected value of the amount won for one entry if the cost of entering is 73 cents.

• A)$0.67
• B)$0.63
• C)$1.29
• D)$200

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Definitions:

Terman

Lewis Terman was a psychologist who is best known for his revision of the Stanford-Binet IQ test and his studies in gifted children.

Gifted Children

Young individuals who demonstrate exceptionally high levels of aptitude or competence in one or more domains.

Genius-Level Contributions

Exceptional and extraordinary contributions or achievements that significantly surpass the norm in any field of intellectual activity or creative endeavor.

Intellectual Disability

A condition characterized by significant limitations in both intellectual functioning and in adaptive behavior, originating before the age of 18.