Module 2: Descriptive statistics

Topic A: Lesson 1: Dot plots and histograms

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Representing data

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Frequency tables & dot plots

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Creating a histogram

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Interpreting a histogram

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Practice

Creating dot plotsGet 3 of 4 questions to level up!

Reading dot plots & frequency tablesGet 3 of 4 questions to level up!

Create histogramsGet 3 of 4 questions to level up!

Read histogramsGet 3 of 4 questions to level up!

Topic A: Lesson 1: Box plots and shape

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Worked example: Creating a box plot (odd number of data points)

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Worked example: Creating a box plot (even number of data points)

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Constructing a box plot

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Reading box plots

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Shapes of distributions

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Practice

Creating box plotsGet 3 of 4 questions to level up!

Reading box plotsGet 3 of 4 questions to level up!

Shape of distributionsGet 3 of 4 questions to level up!

Topic A: Lesson 2: Describing the center of a distribution

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Statistics intro: Mean, median, & mode

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Mean, median, & mode example

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Calculating the mean

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Choosing the "best" measure of center

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Mean, median, and mode review

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Practice

Mean, median, and modeGet 5 of 7 questions to level up!

Calculating the meanGet 3 of 4 questions to level up!

Calculating the medianGet 3 of 4 questions to level up!

Topic A: Lesson 3: Estimating centers and interpreting the mean as a balance point

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Comparing means of distributions

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Means and medians of different distributions

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Impact on median & mean: removing an outlier

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Impact on median & mean: increasing an outlier

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Missing value given the mean

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Mean as the balancing point

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Practice

Calculating the mean: data displaysGet 3 of 4 questions to level up!

Calculating the median: data displaysGet 3 of 4 questions to level up!

Effects of shifting, adding, & removing a data pointGet 3 of 4 questions to level up!

Missing value given the meanGet 3 of 4 questions to level up!

Topic B: Lesson 4: Summarizing deviations from the mean

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Example: Comparing distributions

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Mean absolute deviation example

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Practice

Comparing data distributionsGet 3 of 4 questions to level up!

Comparing center and spreadGet 5 of 7 questions to level up!

Mean absolute deviation (MAD)Get 3 of 4 questions to level up!

Topic B: Lessons 5-6: Standard deviation and variability

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Population standard deviation

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Sample standard deviation and bias

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The idea of spread and standard deviation

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Population and sample standard deviation review

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Practice

Sample and population standard deviationGet 3 of 4 questions to level up!