Use measures of center and measures of variability for numerical data from random samples to draw informal comparative inferences about two populations. For example, decide whether the words in a chapter of a seventh-grade science book are generally longer than the words in a chapter of a fourth-grade science book.
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Learning:
Videos:
Practice Problems:
IXL Practice Problems (must practice at home):
Videos:
- YouTube: Comparing Populations Based on Sample Data
- YouTube: Comparing Data Sets Using Inter-quartile Range
- YouTube: Comparing Data Sets Using MAD
- Khan Academy: Comparing distributions
Practice Problems:
- MathShack: Using Data Displays
- Khan Academy: Comparing distributions
- Shmoop Worksheet and Answers to check
IXL Practice Problems (must practice at home):
- Interpret charts and graphs to find mean, median, mode, and range
- Changes in mean, median, mode, and range
- Calculate mean absolute deviation (MAD)