Chapter 2 - Statistics Vocab - HW Questions

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a frequency distribution lists the ________ of occurrences of each category of data, while a relative frequency distribution lists the ________ of occurrences of each category of data

number, proportions

in a relative frequency distribution, what should the relative frequencies add up to?

1

what is a pareto chart?

a bar graph whose bars are drawn in decreasing order of frequency or relative frequency

what is a bar graph?

a horizontal or vertical representation of the frequency or relative frequency of the categories. the height of each rectangle represents the category's frequency or relative frequency

why shouldn't classes overlap when summarizing continuous data in a frequency or relative frequency distribution?

classes shouldn't overlap so there is no confusion as to which class an observation belongs

the ______ class limit is the smallest value within the class and the _______ class limit is the largest within the class

lower, upper

classes

the categories by which data are grouped

class width

the difference between consecutive lower class limits


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