1.One of the variables most often included in surveys is income. Sometimes the question is phrased "What is your income (in thousands of dollars)?" In other surveys, the respondent is asked to "Select the circle corresponding to your income level" and is given a number of income ranges to choose from. Complete parts a and b below.

b. Which of these two formats would you prefer to use if you were conducting a survey? Why?

2.For each of the following variables, determine whether the variable is categorical or numerical. If the variable is numerical, determine whether the variable is discrete or continuous. In addition, determine the measurement scale.

a. Monthly cellphone data usage left parenthesis in MB right parenthesisMonthly cellphone data usage (in MB)

b. Favorite smart phone applicationFavorite smart phone application

c. Number of cellphones in the householdNumber of cellphones in the household

d. Number of text messages exchanged per monthNumber of text messages exchanged per month

e. Length left parenthesis in minutes right parenthesis of the longest telephone call made in a week

3.For each of the following variables, determine whether the variable is categorical or numerical. If the variable is numerical, determine whether the variable is discrete or continuous. In addition, determine the measurement scale.

a. Time comma in hours comma spent surfing the Internet per weekTime, in hours, spent surfing the Internet per week

b. Whether the individual uses a mobile phone to connect to the InternetWhether the individual uses a mobile phone to connect to the Internet

c. Number of hamburgers ordered in a weekNumber of hamburgers ordered in a week

d. Where the individual uses social networks to find sought dash after informationWhere the individual uses social networks to find sought-after information

e. Number of text messages sent in a week

4.Suppose the following information is collected from Robert on his application for a loan.

a.Insurance paymentsInsurance payments :

$489

b. Number of

credit cards :

1

c. Ever convicted of a felony

No

d.Annual family income

86$,243

Classify each of the responses by type of data and level of measurement.