A Normal Distribution Has a Mean of µ = 100

question 54

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 be less than X = 84?

• A)0.7881
• B)0.5762
• C)0.2881
• D)0.2119

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Definitions:

Extraction Costs

The expenses associated with the removal of raw materials from the earth, such as labor, energy, and equipment costs.

Rare Earth Metals

Rare earth metals are a group of seventeen elements used in the manufacture of a variety of advanced technological devices, characterized by their scarcity and unique electronic properties.

Supply Curve

represents the relationship between the price of a good or service and the quantity of that good or service that suppliers are willing to offer for sale, holding all else constant.

Quantity Supplied

The total amount of a good or service that producers are willing and able to sell at a given price in a given time period.