Tuesday, May 25, 2010

Probabiliy problem


Find the probability of getting a head when a coin is tossed once. Also find the probability of getting a tail.


In the experiment of tossing a coin once, the number of possible outcomes
is two — Head (H) and Tail (T). Let E be the event ‘getting a head’. The number of
Outcomes favorable to E, (i.e., of getting a head) is 1. Therefore,
P (E) = P (head) = Number of outcomes favorable to E = 1/2
Number of all possible outcomes
Similarly, if F is the event ‘getting a tail’, then P(F) = P(tail) =1/2

to understand more about Probabilities these website links may help you,
Probability explainations, and conditional probability

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