For a line chart involving time in years and dollar values, the horizontal or $x-$axis would be used to represent

a$.$ the dollar variable.

b the time variable

c$.$ the class interval.

d$.$ the class frequenty.

The size of the class intervals for a histogram can be found by:

a$.$ consecutive lower class limits divided by $2.$

b$.$ consecutive lower class limits divided by the total number of observations.

c$.$ consecutive lower class limits divided by the number of desired classes.

d$.$ consecutive lower class limits divided by the number of frequencies in each class.

A pie chart requires at least what level of data?

a$.$ nominal

b$.$ ordinal

c$.$ interval

d$.$ ratio

A graphic representation of a frequency distribution constructed by connecting the class midpoints with lines is called a

a$.$ histogram.

b$.$ line chart.

c$.$ pie chart.

d$.$ frequency polygon.