A Normal Distribution Has a Mean of µ = 100

question 13

Multiple Choice

A normal distribution has a mean of µ = 100 with σ = 20.If one score is randomly selected from this distribution,what is the probability that the score will have a value between X = 90 and X = 120?​

• A)0.1498​
• B)​0.4672
• C)​0.5328
• D)​0.2996

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Definitions:

Oligopolist X

A firm operating in an oligopoly market structure, characterized by a small number of firms dominating the market.

Marginal Revenue

The additional income generated from selling one more unit of a good or service.

Cartel Success

The effectiveness of a cartel, a group of independent market participants who collude to raise prices and restrict output, in achieving its objectives of maximizing the profits of its members.

Differentiated Product

A good or service that is distinct from its competitors through variation in design, function, or quality.