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The following information regarding the ten richest Americans was reported in a recent issue of ...

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The following information regarding the ten richest Americans was reported in a recent issue of ...

The following information regarding the ten richest Americans was reported in a recent issue of Forbes.

Name	Ranking	Worth ($Billions)	Age	Marital Status	Source
Gates, William	1	72.0	51	married	Microsoft
Buffett, Warren	2	52.0	77	married	Berkshire Hathaway
Adelson, Sheldon	3	28.0	74	married	casinos, hotels
Ellison, L. J.	4	26.0	63	married	Oracle
Brin, Sergey	5	18.5	34	married	Google
Page, Larry	5	18.5	34	single	Google
Kerkorian, Kirk	7	18.0	90	divorced	investments, casinos
Dell, Michael	8	17.2	42	married	Dell
Koch, Charles	9	17.0	71	married	oil, commodities
Koch, David	9	17.0	67	married	oil, commodities

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?

Textbook

Essentials of Statistics for Business and Economics

Edition: 7^th

Authors: Anderson, Sweeney, Williams, Camm, Cochran

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