Chapter 2 - Statistics Vocab - HW Questions
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