Making Sense of Data
Objects described by a set of data
individuals
Describing two categorical variables
Two-way table
simplest graph to construct and interpret
dotplot
statistical chart consisting of data points plotted on a fairly simple scale
dotplot
The way the graph moves and looks
shape
A Characteristic of an individual
Variable
Categorical variables in a two-way table
Marginal distribution
Left and right sides of the graph are equal
Symmetric
presenting quantitative data in a graphical format
stemplot
the mean or the median
centers
Placing an individual into a category
Categorical variable
What is often more informational: Percents or Count?
Percents
distribution on the right
Skewed right
Histogram
how much variablity a graph has
spread
Numberical values which you can find an average
Quantitative
a distribution of values for one variable that exists when you specify the values of other variables
Conditional distribution
distribution on the left
Skewed left
presenting 2 sets quantitative data in a graphical format
back to back stemplot
how mnay numbers in a data set
count
A variable that tell us what value the variable takes and how often it uses it
distribution
A relationship between variables
Association
graph that has two clear peak
bimodal
circular statistical graphic which is divided into slices to illustrate numerical proportion
pie chart
outlier