Using the data from the Census Bureau answer the following questions:

$12.$ Identify the individuals.

a$.$ The rows of data; that is$,$ the individuals living in the households contacted during the survey.

b$.$ The columns of data. Number for household $($SERIALNO$),$ Weight $($PWGTP$),$ Age $($AGEP$),$ etc, are all individuals.

c$.$ Each individual cell in the data set $($other than the Column header cells$).$

d$.$ The Serial Numbers from Column A $(283,323,$dots,$515).$

e$.$ The header row.

$13.$ Identify the variables.

a$.$ The header row.

b$.$ The columns. Weight in pounds $($PWGTP$),$ Age in years $($AGEP$),$ Travel time to work in minutes $($JWMNP$),$ Highest level of education $($SCHL$),$ etc, are all variables.

c$.$ Each individual cell in the data set $($other than the Column header cells$).$

d$.$ The Serial Numbers from Column A $(283,323,$dots,$515).$

e$.$ The Wage and salary income in dollars $($WAGP$).$

$14.$ The entry in each cell of the table, excluding the header row, $($for example, $187$ pounds, $40$ years old, $15$ minutes travel time, and so on$)$ is known as:

a$.$ an individual.

b$.$ an observation.

c$.$ the value of a variable.

d$.$ the label of an individual.

e$.$ a subject.

$15.$ The data for a particular individual is known as: