Oracle Autonomous Database Cloud 2020 Specialist — Question 56

In Strategic Modeling Simulations, which probability distribution describes many phenomena such as returns on equity or assets, inflation rates, or currency fluctuations? (Choose the best answer.)

Answer options

• A. Normal
• B. Lognormal
• C. Triangular
• D. BetaPERT
• E. Uniform

Correct answer: A

Explanation

The Normal distribution is commonly used to model phenomena that can assume any value, including returns on equity and inflation rates, due to its properties of symmetry and the Central Limit Theorem. The other distributions, while useful in specific contexts, do not accurately represent the range of values and behaviors seen in these financial phenomena.