A Normal Distribution Has a Mean of µ = 40

question 24

Multiple Choice

A normal distribution has a mean of µ = 40 with σ = 10.If a vertical line is drawn through the distribution at X = 55,what proportion of the scores are on the right side of the line?

• A)0.3085
• B)0.6915
• C)0.0668
• D)0.9332

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Definitions:

Break-Even Point

The level of production or sales at which total revenues equal total costs, resulting in no profit or loss.

Shutdown Point

The shutdown point is the level of output and price at which a business covers its variable costs; operating below this point would lead the firm to losses greater than its fixed costs.

AVC (Average Variable Cost)

The cost of labor, materials, and other variable inputs divided by the quantity of output produced.

MC (Marginal Cost)

The increase in total production cost that comes from making or producing one additional unit of a product or service, a concept critical in economic theory for determining the optimal production level.