a priori Probability: the probability that we determine from knowing the process by which the uncertain event happens (by logically examining existing information). Certain Event: event that is sure ...

Learn about probability, the probability scale and how to express probabilities with this BBC Bitesize Maths article. For students between the ages of 11 and 14. How to work out the probability of an ...

The theoretical probability of getting a head when you flip a fair coin is \(\frac{1}{2}\), but if a coin was actually flipped 100 times you may not get exactly 50 heads, although it should be close ...