Middle School Math

Unit B: Statistics

Unit Objectives:
  • Interpret data given in tables, graphs, and plots
  • Determine whether graphs are misleading
  • Analyze data using mean, median, and mode
  • Determine the best measure of central tendency for a set of data
  • Define and identify a simple random sample
  • Organize data in matrices
  • Solve problems by adding or subtracting matrices or by multiplying a scalar
  • Find the range of a set of data
  • Find the quartiles and interquartile range of a set of data
  • Organize and use data in box-and-whisker plots
  • Organize and use data in parallel box-and-whisker plots
Online Textbook Help

 

Mean, Median, Mode, and Range
Stem and Leaf Plots - an interactive graph
Line Plot with Mean, Median, and Mode
Box and Whisker Plot
Box and Whisker Plot
- an interactive graph with several data sets
Histogram
Histogram - an interactive graph with several data sets

 
Practice HSA Release Items

Directions: Click on the links below to view HSA prototype items.

Write your answer on a sheet of paper.

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Use the table at the bottom of this page to check your answers.
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Practice HSA Release Answers

Directions:

Adjust your browswer window to hide these answers while you answer the questions above.

Click on the links below to view sample answers for the BCR and ECR questions. Keep in mind that these pages show both good and not so good answers. Look at them carefully to determine what information the student included to get the better score.

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Last update March 9, 2008