Random variables

How can you time the reaction timer?

Are these statistical statements sometimes, always or never true? Or it is impossible to say?

How is the length of time between the birth of an animal and the birth of its great great ... great grandparent distributed?

When is an experiment described by the binomial distribution? Why do we need both the condition about independence and the one about constant probability?

Are these scenarios described by the binomial distribution?

Can you create random variables satisfying certain conditions?

This article, for students and teachers, is mainly about probability, the mathematical way of looking at random chance and is a shorter version of Taking Chances Extended.