The Following Information Regarding the Ten Richest Americans Was Reported

question 48

Short Answer

The following information regarding the ten richest Americans was reported in a recent issue of Forbes.
$\begin{array}{|l|c|c|c|l|l|}\hline \text { Name }&\text { Ranking } & \begin{array}{c}\text { Worth } \\\text { \$Billions) }\end{array} & \text { Age } & \begin{array}{c}\text { Marital } \\\text { Status }\end{array} & \text { Source } \\\hline \text { Gates, William } & 1 & 72.0 & 51 & \text { married } & \text { Microso } \\\hline \text { Buffett, Warren } & 2 & 52.0 & 77 & \text { married } & \text { Berkshire Hathaway } \\\hline \text { Adelson, Sheldon } & 3 & 28.0 & 74 & \text { married } & \text { casinos, hotels } \\\hline \text { Ellison, L. J. } & 4 & 26.0 & 63 & \text { married } & \text { Oracle } \\\hline \text { Brin, Sergey } & 5 & 18.5 & 34 & \text { married } & \text { Google } \\\hline \text { Page, Larry } & 5 & 18.5 & 34 & \text { single } & \text { Google } \\\hline \text { Kerkorian, Kirk } & 7 & 18.0 & 90 & \text { divorced } & \text { investments, casinos } \\\hline \text { Dell, Michael } & 8 & 17.2 & 42 & \text { married } & \text { Dell } \\\hline \text { Koch, Charles } & 9 & 17.0 & 71 & \text { married } & \text { oil, commodities } \\\hline \text { Koch, David } & 9 & 17.0 & 67 & \text { married } & \text { oil, commodities } \\\hline\end{array}$
a. How many elements are in the above data set?
b. How many variables are in this data set?
c. How many observations are in this data set?
d. Which variables are categorical and which are quantitative?
e. What measurement scale is used for each variable?

Understand the risk factors predisposing toddlers to frequent infections and the importance of defense mechanisms.

Recognize the developmental stages of toddlers as proposed by Piaget and other developmental theories.

Identify typical language development milestones in toddlers.

Understand toddlers’ cognitive development, including their ability to apply knowledge in new situations.

---

Definitions:

Karl Marx

A 19th-century philosopher, economist, and revolutionary socialist whose works, such as the "Communist Manifesto" and "Das Kapital," laid the foundation for modern communism and socialism.

Surplus Value

A Marxian term: the amount by which the value of a worker’s daily output exceeds the worker’s daily wage.

Capitalist

An economic system characterized by private or corporate ownership of capital goods, investments determined by private decision, and prices, production, and the distribution of goods determined mainly by competition in a free market.

One Piece Of Land

Typically refers to a specific parcel of land, often considered in contexts like ownership, real estate transactions, or land usage planning.