Intro
The objects described by a set of data. (May be people, animals, or things)
Individuals
Graph that display the distribution of a categorical variable
Bar graphs
Dotplot
To find the ____ of a set of observations, add their values and divide by the number observations.
Mean
Any characteristics of an individual
Variable
A _____ of counts organizes data about two categorical variable
Two-Way Table
Graph the separate each observation into a stem and a one-digit leaf.
Stemplot
The midpoint of a distribution
Median
Places an individual into one of several groups or categories
Categorical Variable
One of the categorical variables in a two-way table of counts is the distribution of values that variable among all individual described by the table
Marginal Distribution
An individual value that falls outside the overall pattern
Outlier
The median is a ____ measure of center because it is relatively unaffected by extreme observation
Resistant
Takes numerical values for which it makes sense to find an average
Quantitative Variable
Describes the values of that variable among individuals who have a specific value of another variable.
Conditional Distribution
If the right and left side of the graph are approximately mirror images each other.
Symmetric
A distribution consists of the smallest observation, the first quartile, the median, the third quartile, and the largest observation.
The five-number summary
Tells us what values the variable takes and how often it takes these values.
Distribution
There is an _____ between two variables if specific values of one variable tend to occur in common with specific values of the other
Association
3 things that describes the overall pattern of the distribution if quantitative variable.
Shape, Center, and Spread
Measures the average distance of the observation from their mean.