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Event - Exhaustive Events

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  • Types of Event - Exhaustive Events

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Consider the experiment of throwing a die. We have S = {1, 2, 3, 4, 5, 6}. Let us define the following events 
A: ‘a number less than 4 appears’, 
B: ‘a number greater than 2 but less than 5 appears’  and 
C: ‘a number greater than 4 appears’. 
Then A = {1, 2, 3}, B = {3,4} and C = {5, 6}. We observe that 
A ∪ B ∪ C = {1, 2, 3} ∪ {3, 4} ∪ {5, 6} = S.
Such events A, B and C are called exhaustive events.  

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