2 An ordinary coin is to be tossed twice in the usual way. What is your probability for the head turning up both times-- (a) 1/3, because 2 heads is one of three possibilities: 2 heads, 1 head, 0 ...

A probability of 1 means an outcome is certain. All other probabilities have a value between 0 and 1. Outcomes close outcomeA potential result. When a coin is tossed there are two possible ...

In maths, probabilities are usually written as fractions, decimals or percentages with values between 0 and 1. An event which is impossible has a probability of 0 and an event which is certain has ...