In graphing frequency distributions, frequency polygons are most useful when the data Blank______.Multiple choice question.are obtained from nonequivalent groupsrepresent nominal scalesare affected by confounding variablesrepresent interval or ratio scales

What is the primary purpose of a frequency polygon? To represent qualitative data To show the relationship between two variables To depict the distribution of a single set of interval or ratio-scaled data To represent hierarchical data

Frequency polygons are used for:  Continuous data Categorical data both a. and b. None of the above

A Blank______ uses bars to display a frequency distribution for a quantitative variable.Multiple choice question.bar graphfrequency polygonpie charthistogram

A property of a frequency polygon is that (a) a histogram is always needed in the construction of the polygon. (b) the polygon is made up of line segments. (c) the end points of the polygon need not be tied down to the horizontal axis at both ends. (d) the polygon can be constructed on a pie chart.

Which of the following is not a commonly used graph?Select one:a.Pie chartsb.Cumulative frequency ogivesc.Doughnut chartsd.Frequency polygons