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First one is classical approach.
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It states that if an experiment has n outcomes, this method would assign a probability of probability of 1 by n to each outcome.
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In other words, each outcome is assumed to each outcome is assumed to have an equal chance of occurrence.
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For example, rolling a die.
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Here the sample space is 1, 2, 3, etc to 6.
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The probability here is each simple event has 1 by 6 chance of occurrence.
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The next approach is relative frequency approach.
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It states that probabilities are assigned basis of the experimentation.
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It is based on the experimentation or historical data.
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Formally, let a event of interest assumed that you have performed the same events in n times so that the n is the number of times a could have occur.
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Further let number of a be the number of times that a did occur...