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 ...

The notation is the same as theoretical probability, P(event). Image caption, A bag contains blue and purple counters. A counter is taken out at random, its colour recorded, then it is put back ...

The investigate weather forecasts experiment looks at how to work out the probability of the weather forecast being right. Level 1 - Pack of cards Questions to test your ability to work out the ...