Variables
Displaying Distributions
Describing Distributions
5-number summary
Vocabulary
100
The object described by a set of data. [Kroner note: slightly different terminology from what we've done]
What is an individual?
100
The name of this type of graph. 
Dotplot
100
This is the middle number of an ordered data set.
Median
100
What are the five statistics displayed by a box plot?
median, min, max, Q1, Q3
100
This display shows the entire group of cases as a circle.
Pie chart
200
Two types of variables
Categorical and quantitative
200
The name of this type of graph.
Bar chart
200
This measures the data value that is most common.
Mode
200
The median of this dataset:
7, 5, 3, 7
6
200
A bar chart displays this kind of variable.
Categorical variable
300
Identify the categorical variable.
Movies
300
You should not forget to include this when creating a stem plot.
Key/legend
300
The range for 1.5, 0.25, 3, 2.7, 1.1, 4.85, 2.75
4.6
300
The percentage of data between Q1 and Q2
50%
300
This is the statistical term for the number of times an event occurs.
Frequency
400
Classify the variables (categorical vs. quantitative).
Categorical - rating and genre
Quantitative - year, time, box office sales
400
Three graphical displays that can be used for quantitative data.
Histogram, box plot, dot plot
400
A list of measures of spread (up to 3).
Standard deviation, range, and IQR
400
Use this measure of center if there are no outliers and no strong skewness.
Mean/average
400
A data value that is far from most of the data
Outlier
500
D (2 quantitative, 1 categorical)
500
The kind of table this is. [Kroner note: we didn't cover this in this unit]
Relative frequency table
500
The shape of this distribution.
Right-skewed
500
The IQR of this (summarized) data:
min: 100
Q1: 114
median: 120
Q3: 134
max: 180
20
500
This table list the categories in a categorical variable and give the percentage of the observations for each category. [Kroner note: we didn't cover this in this unit]
Relative Frequency Table