In your experiment, you have 12 data points. That’s not a big sample, yet you want to make conclusive claims about larger group that these … Read More

For example, maybe you’re testing a new marketing campaign, and you think people respond different depending on where they live. So you gather the results, … Read More

If you think about randomness, chances are you imagine chaos. It is a disorderly mix of everything happening everywhere at once, a mess. But hidden … Read More

But time seems to pass slower then it actualy does. Three minutes on a clock feel like an eternity while sitting at a counter. That’s … Read More

Consider a standardized test, for instance. You’re familiar with typical test scores, you know the mean and you know the range of test scores among … Read More

This problem isn’t one that calls for the binomial distribution. You’re pulling five cards and would like to calculate probability of getting exactly three hearts. … Read More

Imagine you’re running a call center. On average, four calls per minute come through during your shift. The question haunting your shift is whether you … Read More

Right when you figure you’ve done enough for an hour, the phone rings. You look up at the clock, and you wonder whether it’s just … Read More

The way we think about the anxiety of waiting for something special is all math. This includes things like getting your first yes from an … Read More

Let’s say you’re playing basketball and taking free throws. Until you have made five baskets, you’ll continue to shoot. How many shots do you think … Read More