I See What You Mean

At his blog Junk Charts , statistics jock Kaiser Fung cleans up the clunkers. And very well too , I might add. Here's a revamp he did of an eyecatching-but-not-very-useful graphic depicting Americans' changes in religious affiliation (data via Pew ). I like his clever format, with the arrows pointing in all directions. However, at some point a data set is too small to be worth visualizing, per Tufte, and should be displayed as a table instead. Here, ET does a rethink of a statistical table that molds the numbers into an elegant and useful hybrid, a "table-graphic." I wondered if a hybridized display would work well for the Pew data set, so I gave it a try. Usefully simple, or too simplistic? Comments welcomed.

Here's another look at public health stats from various countries around the world. As with the first installment of this series , the countries included here rank in the Top 5 in at least one of four categories: Life Expectancy (longest), Under-5 Mortality (least), Health Care Expenditure per Capita (highest), and Prevalence of Physicians (greatest). (Source: Nationmaster.com .) NOTE: Unlike the previous chart, this one omits Macau and Hong Kong, which had made the cut because of their populations' longevity. I omitted these two Chinese territories because the only available figures on the geographical distribution of physicians reflect China as a whole. Result: not only does this camouflage the serious disparity between urban centers and rural districts, it obscures any geographical specifics. Comments and questions are invited.

In selecting my international sample, I decided to examine the top 5 countries in each of four categories:  Longest life expectancy (longest) Lowest infant mortality (least) Highest health care expenditure per capita Greatest prevalence of physicians My source for these stats was the invaluable Nationmaster.com . (Note:  As a proxy for Hong Kong and Macau, I've used China's expenditure figure, since they've both been under Chinese rule for the last decade.) Given where the two dimensions of this graph ultimately lead, I've nicknamed it "Death and Taxes (Sorta)."

I was surprised to read this week that putatively educated Americans ( a Louisiana lawyer, a Colorado dentist , an ABC News reporter ) don't understand the concept of marginal tax rates. Because of this lack of comprehension, per ABC, the lawyer and dentist are vowing to keep their taxable income below $250,000 to avoid President Obama's proposed tax increase: "I've put thought into how to get under $250,000," said [the ill-informed dentist]. "It would mean working fewer days which means having fewer employees, seeing fewer patients and taking time off." Apparently some clarification is called for . Below is a US federal income tax table for 2009 ( source ). This does not mean that if you bring in more than $372,951, every single dollar in your entire pile of money is taxed at 35%. Only Dollar #372,952 (plus whatever additional money you may earn) is taxed at that rate. Dollar #372,950 is taxed at 33%. Meanwhile, Dollar #1 is taxed at 10%. Hence the ter