Evaluate and Judge Quantitative Evidence

You see a number, and it feels like the argument is over. “Ratings are up.” “Nine out of ten people preferred it.” “The trend is clear.” A single figure lands with the weight of proof, and the decision seems to make itself. But numbers rarely settle a question on their own, and the ones that sound most convincing are often the ones worth questioning first.

Every day you weigh choices backed by numbers: which plan to switch to, whether a change really worked, what a rating or a statistic is actually telling you. When you cannot tell the difference between evidence that supports a decision and evidence that only looks like it does, it is easy to be talked into the wrong call, or to talk yourself into it.

This beginner course teaches a simple, transferable method for judging quantitative evidence, with no math background required. You will learn to ask what a number actually measures, what it quietly assumes, and what it leaves out, and to resist two of the most common traps: mistaking a correlation for a cause, and treating a past trend as a guarantee.

Sign up now and start telling the difference between numbers that prove a point and numbers that only sound like they do.