FREE DOWNLOAD OF PROBABILITY TEXTBOOK

DOWNLOAD OF PROBABILITY TEXTBOOK

Probability  is the numerical measure of the chance of an outcome or event occurring.
When  all outcomes are equally likely to occur, the probability of the occurrence of a
given outcome can be found by using the following formula:
  probability = number of favorable outcomes/number of possible  outcome

Example 1: What is the probability that on two consecutive  rolls of a die the numbers will be 2 and then 3? (A die has sides numbered 1-6).Since the probability of getting a 2 on the first roll is 1/6 and the  probability of getting a 3 on the second roll is 1/6, and since the rolls are  independent of each other, simply multiply.
            1/6 x 1/6 = 1/36

Example 2: What is the probability of tossing heads three  consecutive times with a two-sided fair coin?
Because each toss is independent and the odds are 1/2 for each toss, the  probability is

1/2 x 1/2 x 1/2 = 1/8

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