Probability is a measure of the likelihood ... which means one ticket in every five will win a prize. Charities need to calculate how many tickets they need to sell and how much prizes cost ...

The new research does not attempt to calculate the absolute number of "observers" - i.e. intelligent life - in the universe, ...

Explain why probability is important to statistics and data science. See the relationship between conditional and independent events in a statistical experiment. Calculate the expectation and variance ...