Describe and construct different types of quantitative data graphs,including histograms,frequency polygons,ogives,and stem and leaf plots.Explain when these graphs should be used.

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The Answer is Two types of graphical depictions are quantitative data graphs and qualitative data graphs.Quantitative data graphs presented in this chapter are histogram,frequency polygon,ogive,and stem and leaf plot.Qualitative data graphs presented are pie chart,bar chart,and Pareto chart.In addition,two-dimensional scatter plots are presented.A histogram is a vertical bar chart in which a line segment connects class endpoints at the value of the frequency.Two vertical lines connect this line segment down to the x-axis,forming a rectangle.A frequency polygon is constructed by plotting a dot at the midpoint of each class interval for the value of each frequency and then connecting the dots.Ogives are cumulative frequency polygons.Points on an ogive are plotted at the class endpoints.Stem and leaf plots are another way to organize data.The numbers are divided into two parts,a stem and a leaf.The stems are the left-most digits of the numbers and the leaves are the right-most digits.The stems are listed individually,with all leaf values corresponding to each stem displayed beside that stem.

Describe and Construct Different Types of Quantitative Data Graphs,including Histograms,frequency