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8 Cards in this Set

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  • Back
frequency distribution
display table dividing certain values into a set f classes and showing the number of observations falling into each class
mutually exclusive
the classes in a frequency distribution are mutually exclusive when each data value can fall into only one category
the condition in which the set of classes includes all possible data values
relative frequency distribution
the display table showing the proportion of times an event occurs over a large number of trials
cumulative frequency distribution
showing the number of observations within or below each class, or above or within each class
for quantative variables, a graphical method that describes a frequency distribution by expressing either the frequency or relative frequency within each class as the length of a rectangle... in a histogram, adjacent rectangles share a common side
a graphical display providing cumulative values for frequencies, relative frequencies, or percentages. may be either less than or greater than
bar chart
for qualitive variables, a graphical method in which the number of values in a category is proportional to the length of a rectangle. unlike the histogram, there is a gap between adjacent rectangles