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?

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Definitions:

Impression Formation

The psychological process by which individuals form opinions and judgments about other people based on available information and personal biases.

Cognitive Dissonance

A state of mental distress caused by possessing multiple contradictory beliefs, ideas, or values concurrently.

Attitude Formation

The process by which individuals develop their perspectives and feelings towards objects, people, or events, based on their experiences and thoughts.

Attitude Formation

The process by which individuals develop their perspectives and feelings towards objects, people, or events based on experiences and influences.