Solve the Problem $\mathrm { P } ( 0 < \mathrm { z } < \mathrm { a } ) = 0.4608$

question 19

Multiple Choice

Solve the problem.
-Assume that z scores are normally distributed with a mean of 0 and a standard deviation of 1. If $\mathrm { P } ( 0 < \mathrm { z } < \mathrm { a } ) = 0.4608$ find a.

• A) 1.76
• B) -0.10
• C) 0.61
• D) 0.1772

---

Definitions:

Barriers To Entry

Obstacles that make it difficult for new competitors to enter a market, which can include high startup costs, regulatory requirements, or established brand loyalty.

Economic Profits

The excess of total revenue over total costs, including both explicit and implicit costs, signifying a return beyond the normal profit level.

Natural Monopoly

A market situation where due to high fixed or startup costs, a single firm can supply a product or service at a lower cost than any potential competitor, leading to a dominance of the market.

Long-Run Average Costs

Reflects the per-unit cost of production when all inputs are considered variable over time, highlighting economies of scale.