The Probability of Earning a Score of 90 on This

question 29

Multiple Choice

The probability of earning a score of 90 on this test is 20%,the probability of earning a score of 80 is 60%,and the probability of earning a score of 70 is 20%.The correct formula for the expected value of this test is thus

• A) (0.2)(90)+ (0.6)(80)+ (0.2)(70).
• B) (20)(90)+ (60)(80)+ (20)(70).
• C) (90 + 80 + 70)/3.
• D) (0.33)(90)+ (0.33)(80)+ (0.33)(70).
• E) unknown.

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Definitions:

Indifference Curve

A graph that represents combinations of goods among which a consumer is indifferent.

Indifference Curve

A graphical representation showing combinations of two goods or services among which a consumer is indifferent, implying no preference for one combination over another.

T-Shirts

A type of clothing characterized by short sleeves, a round neckline, and no collar, typically made of cotton fabric.

Coffee

A beverage made from roasted and ground beans of the coffee plant, commonly consumed for its stimulating effects.