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Practice how to precisely describe comparisons
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https://handsondataviz.org/describe-comparisons.html
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Example 1: If a billionaire walks into a room, everyone becomes a millionaire... on average.
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PersonWealth
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A$100
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B$200
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C$300
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D$400
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E$500
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F$1,000,000,000
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Calculate the mean (aka average)$166,666,917
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Calculate the median$350
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Is one more meaningful than the other?
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Example 2: Trident gum advertised with this slogan in the 1970s:
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4 out of 5 dentists prefer sugarless gum.
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Today, all dentists prefer sugarless gum... if you chew gum.
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Year
Percent of Dentists
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197080%
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2022100%
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Calculate the percent change25%
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Calculate the percentage point difference20%
20 percentage point difference
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Is one more meaningful than the other?
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Example 3: A politician proposes to raise the sales tax on products and services you purchase from 5 to 6 percent, and claims “it’s only a 1 percent increase.”
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PeriodRate
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Now5%
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Future6%
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Calculate the percent change20.00%
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Calculate the percentage point difference1%
percentage point difference
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Is one more meaningful than the other?
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Is the politician misleading?
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