The Table Below Shows the Distribution of Income in the U.S.in

question 61

Multiple Choice

The table below shows the distribution of income in the U.S.in the year 1978. Table 19.1
Refer to Table 19.1.What percentage of households earn 31.5% of the income?

• A)Bottom 20%
• B)Top 20%
• C)Bottom 60%
• D)Top 40%
• E)Top 10%

---

Definitions:

Positive Selection

The evolutionary process in which genetic variations that are advantageous for reproduction and survival become more common in subsequent generations.

Frequency

The rate at which a particular characteristic or phenomenon occurs within a given population or area.

Fitness

In evolutionary terms, the ability of an organism to pass its genes to the next generation, often measured by the organism's reproductive success.

Post-mating, Prezygotic

Describes reproductive barriers that occur after mating but before the formation of a zygote, such as sperm-egg incompatibility.