Probability (English subtitles available)

Through the stories of some coincidences in daily life, it is pointed out that a small number is used to represent the very small chance of happening of an event and in mathematics, it is the probability of occurrence of the event. The programme uses the different events of the game of tombola cage to introduce the fundamental formula of calculating probability. The cases of “a certain event” and “an impossible event” are explored and it is recognized that the range of probability lies between 0 and 1. The condition of equally likely for all possible outcomes of an event is stressed in the application of the formula. A photograph of seven boys of a family brings forth the discussion of possible combinations of a family of seven children. A tree diagram is used for listing all combinations and the probability of having seven boys is calculated. An experiment on throwing a die for a number of times is demonstrated to test the fairness of a die. Experimental (empirical) probability is thus introduced at is shown that when the number of throws is large enough, the experiment probability approaches the theoretical probability.
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