Final answer:
The question involves Mathematics and seeks to understand the interpretation of shaded areas under curves represented by functions, with relevance to integral calculus and probability in the context of normal distributions.
Step-by-step explanation:
The question falls under the subject of Mathematics, specifically in the area of functions, inequalities, and interpreting shaded areas under curves, as it requires understanding graph characteristics and determinations related to area calculations. When addressing areas under curves for the functions f(x) and g(x), the problem often requires evaluating integrals or using geometric methods to find the actual areas. In the case of normal distribution, the shaded area under the curve is commonly associated with the probability of a random variable falling within a specific range, and the values can be calculated using normal tables, computers, or calculators. To interpret area A or B or the common area AB, you would use the given functions' properties, such as where one function is increasing and the other is decreasing, to determine the limits of integration or the relevant geometric formulas.