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Data and statistics

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Representing dataFrequency tables & dot plots
Practice
Data set warm-upGet 5 of 7 questions to level up!
Creating frequency tablesGet 3 of 4 questions to level up!
Creating dot plotsGet 3 of 4 questions to level up!
Reading dot plots & frequency tablesGet 3 of 4 questions to level up!
Estimate center using dot plotsGet 3 of 4 questions to level up!
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Statistical questions
Practice
Statistical questionsGet 5 of 7 questions to level up!
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Creating a histogramInterpreting a histogram
Practice
Create histogramsGet 3 of 4 questions to level up!
Read histogramsGet 3 of 4 questions to level up!
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Statistics intro: Mean, median, & modeMean, median, & mode exampleCalculating the mean
Practice
Calculating the meanGet 3 of 4 questions to level up!
Calculating the medianGet 3 of 4 questions to level up!
Calculating the mean: data displaysGet 3 of 4 questions to level up!
Calculating the median: data displaysGet 3 of 4 questions to level up!
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Missing value given the meanMean as the balancing pointImpact on median & mean: removing an outlierImpact on median & mean: increasing an outlierMedian & range puzzlers
Practice
Missing value given the meanGet 3 of 4 questions to level up!
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Interquartile range (IQR)
Practice
Interquartile range (IQR)Get 3 of 4 questions to level up!
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Reading box plotsConstructing a box plotWorked example: Creating a box plot (odd number of data points)Worked example: Creating a box plot (even number of data points)Interpreting box plots
Practice
Reading box plotsGet 3 of 4 questions to level up!
Creating box plotsGet 3 of 4 questions to level up!
Interpreting quartilesGet 3 of 4 questions to level up!
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Mean absolute deviation (MAD)Mean absolute deviation example
Practice
Mean absolute deviation (MAD)Get 3 of 4 questions to level up!
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Comparing dot plots, histograms, and box plots
Practice
Comparing data displaysGet 3 of 4 questions to level up!
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Shapes of distributionsClusters, gaps, peaks & outliers
Practice
Shape of distributionsGet 3 of 4 questions to level up!
Clusters, gaps, peaks, & outliersGet 5 of 7 questions to level up!

About this unit

In statistics, we try to make sense of the world by collecting, organizing, analyzing, and presenting large amounts of data. For example, you may survey your friends about what tv show is most popular, but the small sample size will not give you an accurate idea of what ALL 6th graders like to watch. To do this you must survey a cross section of students from all around the country and all backgrounds. The data can then be statistically analyzed to give a more accurate picture of what tv show is most popular. So let's dive into a discussion of statistics, including box and whisker plots, bar charts, pictographs, line graphs, and dot plots.