Statistics Chapter 2

the_____ ______ lists each category of data and the number of occurrences for each category

frequency distribution

a ___ is constructed by drawing rectangles of each class of data. the height of each rectangle is the frequency or relative frequency of the class. the width of each rectangle is the same and the rectangles touch each other.

histogram

what is a pie chart

is a circle divided into sectors. each sector represents a category of data.

a frequency distrubtuion lists the ___ of occurences of each category of data, while a relative frequency distribution lists the ___ of occurences of each category of data

number, proportion

the ____ ____ relative frequency is the proportion (or percent) of observations within a category and is found using the formula Frequency divided by sum of all frequencies

relative frequency

A ___ ____ ____ lists each category of data together with the relative frequency

relative frequency distribution

the _____ is the smallest value within the class and the ___ is the largest value within the class

lower class limit, upper class limit

a ____ ____ ___ is obtained by plotting the time in which a variable is measured on the horizontal axis and the corresponding value of the variable on the vertical axis.

time series plot

what is a pareto chart

a bar graph where the data is in descending order

a __ __ is constructed by labeling each category of data on either horizontal or vertical axis and the frequency or relative frequency of the category on the other axis.

bar graph

the ____ is the difference between consecutive lower class limits

class widths

____ are classes by which data are grouped

classes