Unit 7 Data Analysis

 Unit 7 Essential Questions 1 How can we collect and organize data? 2 How can we best represent data? 3 How can we use data to make decisions?

 1 Learning Objectives Unit 7 Stem-and-Leaf Plots and Mean, Median, and Mode: Exploring Data and Statistics Make and use a step-and-leaf plot to put data in order Find the mean, median, and mode of data Box-and-Whisker Plots: Exploring Data and Statistics Draw a box-and-whisker plot to organize real-life data Read and interpret a box-and-whisker plot of real-life data

## Unit 7 Key Concepts and Skills

### 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 stem-and-leaf plot from a data collection.
• Read and interpret a stem-and-leaf 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 slope-intercept 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 five-number summary.
• Read and interpret a box plot
• Compare and interpret multiple box plots

## Skills Quizzes : Data Analysis

Quiz Name Skill Assessed Practice File Passing Grade Notes
MCAS Preparation Solve data analsys problems, from Massachusetts state tests

Practice Problem Set Solutions (pdf)
• not published
• not published