Against All Odds: Inside Statistics

2018
09:00

Season 1, Episode 2 (Histograms)

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Meteorologists use histograms to map when lightning strikes and this visualisation technique helps them understand the data in new ways.
11:00

Season 1, Episode 1 (Stemplots)

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As a first step in visualizing data, we use stemplots to understand measurements taken by the U.S. Army when they size up soldiers in order to design well-fitting gear and supplies for modern warfighters.
10:00

Season 1, Episode 15 (Census And Sampling)

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The U.S. counts every resident every ten years - or at least tries to. Statisticians use sampling from a population as an alternative to a complete count, as utilised at a potato chip factory.
10:00

Season 1, Episode 14 (Designing Experiments)

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We move beyond observational studies - like one of marine life in the remote Line Islands - to designing experiments that manipulate various subject groups - as in the case of a medical study about osteoarthritis treatments.
09:00

Season 1, Episode 16 (Sample And Surveys)

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A visit to the University of New Hampshire Survey Centre illustrates how pollsters create accurate surveys. They can then use details from their sample to make inferences about a whole population.
10:00

Season 1, Episode 11 (Correlation)

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Twin studies track how similar identical and fraternal twins are on various characteristics, even if they don't grow up together. Correlation lets researchers put a number on it.
10:00

Season 1, Episode 10 (Fitting Lines To Data)

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Winter snowpack in the Colorado Rockies can predict spring water supply. Plotting annual measurements in a scatterplot lets resource managers draw a regression line that helps them forecast water availability.
08:00

Season 1, Episode 9 (Scatterplots)

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Plotting annual numbers of Florida powerboat registrations and manatee killings suggests an uncomfortable relationship for the marine mammals.
08:00

Season 1, Episode 3 (Measures Of Center)

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It's helpful to know the centre of a distribution - which is what the clerical workers in Colorado Springs found out in the 1980s when they campaigned for comparable wages for comparable work.
11:00

Season 1, Episode 30 (One-way Anova)

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Does holding a heavier clipboard make you estimate that a jar of coins has more money in it than if you're holding a lighter clipboard? Psychologists use One-Way ANOVA to analyse the data from this experiment.
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