Which of the following is TRUE?
A)A frequency polygon is developed by connecting the points of change in a cumulative distribution function.
B)The frequency polygon is obtained from the histogram by connecting the midpoints of the bars with straight lines.
C)The empirical cumulative distribution function is obtained from the histogram by connecting the midpoints of the bars of the histogram with straight lines.
D)The empirical cumulative distribution function can only be generated from the cross tabulation.
E)Histograms are obtained from frequency polygons.

Question

Quizplus · Accepted Answer

A frequency polygon is developed by connecting the points of the histogram with straight lines, not the cumulative distribution function. The frequency polygon is obtained from the histogram by connecting the midpoints of the bars with straight lines. The empirical cumulative distribution function is obtained by adding up the heights of the histogram bars instead of connecting the midpoints with straight lines. The empirical cumulative distribution function can also be generated from raw data, not just from a cross tabulation. Histograms are not obtained from frequency polygons; rather, frequency polygons are obtained from histograms.

Which of the Following Is TRUE