Classify data as categorical or numerical and as discrete or continuous, select appropriate censuses, surveys, observations, or experiments, and evaluate samples and survey questions for representativeness and bias. Calculate and interpret mean, median, mode, and range, explain how outliers affect measures of center, construct and interpret histograms, and identify misleading scales, intervals, labels, and visual features in data displays. Construct scatter plots of paired numerical data and describe positive, negative, or nonexistent associations, including linear or nonlinear patterns, clusters, gaps, and outliers, without inferring causation or using regression or correlation coefficients.
On this page:
- Master skills like “Construct histograms”, “Interpret histograms”, and “Construct scatter plots” with unlimited, free practice problems
- Download (or modify) free worksheets on Data Analysis you can use at home or in class with practice problems across all skills in this group including “Identify biased survey questions”, “Calculate mean, median, mode, and range”, “Distinguish discrete and continuous data”.
- Start working on adaptive units like “Statistics - Data Organization - Intro” or “Probability and Statistics - Histograms - Intro” that include these skills and will introduce and scaffold the skills carefully for maximum learning.
Data Analysis: Individual Skills
Master 11 individual skills with free practice problems. Mouseover to see the skill's practice problems. Create a free account to track your progress.
Your results
- Calculate mean, median, mode, and range
- Construct histograms
- Construct scatter plots
- Describe trends and associations in scatter plots
- Determine the effect of outliers on measures of centre
- Distinguish categorical and numerical data
- Distinguish discrete and continuous data
- Evaluate the representativeness of a sample
- Identify biased survey questions
- Interpret histograms
- Select an appropriate data collection method
Practice 'Calculate mean, median, mode, and range'
Select any skill in this group by hovering over the list above. Unlimited free practice problems, automatically graded.
Hover a skill above to start practicing.
Download/Modify Free Grade 8 'Data Analysis' Worksheet
Print this free 'Data Analysis' worksheet to practice these skills away from the computer. Click 'Modify' to easily customize this worksheet to your exact needs.
This Worksheet Includes:
- Calculate mean, median, mode, and range
- Construct histograms
- Construct scatter plots
- Describe trends and associations in scatter plots
- Determine the effect of outliers on measures of centre
- Distinguish categorical and numerical data
- Distinguish discrete and continuous data
- Evaluate the representativeness of a sample
Units Teaching These Skills
These adaptive units introduce, teach, or reinforce skills in this group (Data Analysis) through scaffolded problems that grow in difficulty as concepts are understood.
Explore More Grade 8 Math
- Algebraic Expressions
- Equations and Inequalities
- Fractions, Decimals, and Percents
- Geometry and Spatial Reasoning
- Integers and Rational Numbers
- Linear Relationships
- Measurement
- Powers, Roots, and Scientific Notation
- Probability and Financial Literacy
- Ratios, Rates, and Proportional Reasoning
- Transformations and Coordinate Geometry