Question

The following information regarding the nine richest Americans was reported in a recent issue of Forbes.
(Total: 5 marks)
Name

Ranking
Net 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

How many variables are in table?

List the qualitative variables.

What measurement scale (interval or ratio) is used for each of the following variables?

Answer 1

Given

Name	Ranking	Net 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	6	18.5	34	single	Google
Kerkorian, Kirk	7	18.0	90	divorced	investments, casinos
Dell, Michael	8	17.2	42	married	Dell Koch, Charles
Koch, Charles	9	17.0	71	married	oil, commodities

There are '4' variables.

Marital Status is qualitative

Ranking Interval

Worth Ratio scale

Age   Ratio scale

Martial status Nominal scale

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