Sampling and Hypothesis Testing

Understanding Hypotheses

Age 14 to 18

This article explores the process of making and testing hypotheses.

Snow and Cholera

Age 14 to 16
Challenge Level

What information helped medical pioneers decide on the cause of a disease? Especially in a time before microscopes were as powerful as they are today ?

Very Old Man

Age 16 to 18
Challenge Level

Is the age of this very old man statistically believable?

Counting Fish

Age 14 to 16
Challenge Level

I need a figure for the fish population in a lake. How does it help to catch and mark 40 fish?

David and Goliath

Age 14 to 18
Challenge Level

Does weight confer an advantage to shot putters?