Solution to A survey was conducted to study the smoking habits of UK residents. Below is a … - Sikademy

July 24, 2021

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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.

Solution

Data matrix displaying a portion of the data collected in the survey conducted to study the smoking habits of UK residents.

a) What does each row of the data matrix represent?

A UK resident.

b) How many participants were included in the survey?

1691.

c) Indicate whether each variable in the study is numerical or categorical. If numerical, identify as continuous or discrete. If categorical, indicate if the variable is ordinal.

Sex is categorical.

Age is numerical (discrete).

Marital status is categorical.

Gross income is categorical (ordinal).

Whether a person smokes is categorical.

Amount of cigarettes per day on weekends is numerical (discrete).

Amount of cigarettes per day on weekdays is numerical (discrete).