Objectives  Determine 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.
Vocabulary  Frequency: the number of items in a given range
 Relative frequency: the fraction/proportion of items in a given range compared to the total
 Cumulative frequency: the number of items at or below a given value
 Cumulative relative frequency: the fraction/proportion of
the sum of the frequencies at or below a given value compared to the total
 Bin: a range that values are grouped into to create a frequency chart, histogram, or cumulative frequency plot

Updating...
Ċ Andy Pethan, Feb 18, 2012, 9:27 PM
