### 1.5 Histograms

 ObjectivesDetermine when a histogram is a good way to visualize a distribution (~25+ values, ~continuous data).Determine the appropriate starting point and bin width for a frequency chart or histogram.Break a list of values in bins and create a frequency chart.Create a relative frequency chart from a frequency chart.Create a cumulative frequency chart from a frequency chart.Create a cumulative relative frequency chart from a cumulative frequency chart.Create a histogram labeled with either the frequency or relative frequency on the vertical axis.Create a cumulative frequency plot labeled with either the frequency or relative frequency on the vertical axis. Interpret the quantity or percent of values in a given range by reading a histogram.Interpret the quantity or percent of values in a given range by reading a cumulative frequency plot.VocabularyFrequency: the number of items in a given range Relative frequency: the fraction/proportion of items in a given range compared to the totalCumulative frequency: the number of items at or below a given valueCumulative relative frequency: the fraction/proportion of the sum of the frequencies at or below a given value compared to the totalBin: a range that values are grouped into to create a frequency chart, histogram, or cumulative frequency plot
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Andy Pethan,
Feb 18, 2012, 9:27 PM