Answered: marital status is __. a. numerical…

Linear Algebra: A Modern Introduction

4th Edition

ISBN:9781285463247

Author:David Poole

Publisher:David Poole

Chapter3: Matrices

Section3.1: Matrix Operations

Problem 19EQ: A factory manufactures three products (doohickies, gizmos, and widgets) and ships them to two...

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A survey was conducted to study the smoking habits of UK residents. Below is a data matrix displaying a portion of the data collected in this survey. Note that "£" stands for British Pounds Sterling, "cig" stands for cigarettes, and "N/A" refers to a missing component of the data.

case	sex	age	gross income	smoke	weekends	weekdays	Married
1	f	42	under 2500	yes	12 cg a day	12 cg a day	single
2	m	44	10000-15000	no	N/A	N/a	single
3	m	50	36400+	yes	6 cg / dayy	6 cg / day	married
..
...
1448	m	40	2600-5200	yes	8 cg / day	8 cg / day	single

Some of the variables are listed below. Match them with their type.

marital status is __.

a. numerical discrete

b. numerical continuous

c. categorical nominal

d. categorical ordinal

gross income is __.

a. numerical discrete

b. numerical continuous

c. categorical nominal

d. categorical ordinal

whether or not the individual smokes Is ___.

a. numerical discrete

b. numerical continuous

c. categorical nominal

d. categorical ordinal

amount the individual smokes per day on a weekday Is ___.

a. numerical discrete

b. numerical continuous

c. categorical nominal

d. categorical ordinal

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