This probability problem seems so simple ... but can you actually solve it? Hint: You might want to use Google Earth.

Entry 3 - How certain? How mathematics can give a probability or likelihood answer to events that are not certain in a mathematical way ...

Calculating probabilities How to describe probabilities and the probability scale Learn about probability, the probability scale and how to express probabilities with this BBC Bitesize Maths article.

At the time of the announcement in January, the asteroid’s impact probability was reported to exceed 1%. The impact probability describes how likely a hazardous asteroid is to hit Earth.

When scientists spot an asteroid whose trajectory might take it close to Earth, they monitor it frequently and calculate the probability that it might collide with our planet.