Unit 7 Key Concepts and Skills 
Topic 
Data Analysis Skills 
Data, Describing Data, and Central Tendency 
Data 
Differentiate between data, information and a collection of numbers. 
Mean 
Identify/calculate the mean of a data collection numerically or graphically; compare the mean of multiple data collections. 
Median  Identify the mean of a data collection numerically or graphically; compare the median of multiple data collections. 
Mode  Identify the mode of a data collection numerically or graphically; compare the modes of multiple data collections. 
Range  Calculate the range of a data collection; compare the range of multiple data collections. 
Quartiles  Identify the first, second, and third quartile of a data collection; compare quartiles of multiple data collections. 
Min  Order data, identify the minimum values of a data collection. 
Max  Order data, identify the maximum values of a data collection. 
Inter Quartile Range  Calculate the interquartile range of a data collection; compare the interquartile range of multiple data collections. 
Outliers  Identify outliers or candidates from a data collection. 
Displaying Data 
Stem and Leaf plots 
 Create a stemandleaf plot from a data collection.
 Read and interpret a stemandleaf plot

Tables and Charts 
 Collect, organize, and /represent data in a table or chart.
 Read and interpret a table or chart

Bar Graphs 
 Create a bar graph from a data collection.
 Read and interpret a bar graph

Double Bar Graphs 
 Create a double bar graph from multiple data collections.
 Read and interpret a double bar graph

Histograms 
 Collect and organize data into a histogram.
 Read and interpret a histogram

Scatter Plots 
 Create a scatter plot from a data collection.
 Read and interpret a scatter plot

Line of Best Fit /Trend lines 
 Create a line of best fit or a trend line from a data collection, and write the equation of the line in slopeintercept form.
 Read and interpret a graph of a trend line; write the equation of a trend line from its graph.

Circle Graphs /Pie Charts 
 Create a circle graph (or pie chart) from a data collection, using ratios and proportions as needed and converting parts of a whole into percentages.
 Read and interpret a circle graph (or pie chart)

Box Plots /Box and Whisker Plots 
 Create a box plot from a data collection using the fivenumber summary.
 Read and interpret a box plot
 Compare and interpret multiple box plots
