The flipped total
One treatment wins on small stones and on large stones. How can it lose when you add the two together?
Two kidney-stone treatments from a 1986 study, 350 patients each. Open surgery succeeds more often on small stones and on large stones, yet the newer procedure wins the total. The sliders move who had which stone while every success rate stays put. Watch the total flip while the groups never do.
Board: The Statistic That Reverses Itself →On a narrow screen the three panels stack below the two sliders, and the table scrolls sideways.
try this Drag both sliders to the same number, then apart again, and watch the letter under The total says.
Included with a plan
This lab is included with a plan. The first three lessons of every track are free, with their boards and videos. A plan unlocks every lesson, board, video, lab and paper for one price.