3 on a question. An event B will occur with probability 06. For example the probability of flipping a coin and it being heads is ½ because there is 1 way of getting a head and the total number of possible outcomes is 2 a head or tail.
The probability of an event always varies from 0 to 1.
P EF P EP FP EF P E F P E P F P E F Suppose the spinner below is spun. Either A or B always occurs. In an experiment an event. Then the probability of occurrence of the event called its success is denoted by displaystyle P left Erightfrac r n P E nr The probability of non-occurrence of the event called its failure is denoted by.