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Question
Tickets numbered 2, 3, 4, 5, ..., 100, 101 are placed in a box and mixed thoroughly. One ticket is drawn at random from the box. Find the probability that the number on the ticket is a number which is a perfect square.
Solution
All possible outcomes are 2, 3, 4, 5................101.
Number of all possible outcomes = 100
Out of these, the numbers that are perfect squares = 4, 9,16,25, 36, 49, 64, 81 and 100
Let E3 be the event of getting a number that is a perfect square.
Then, number of favourable outcomes = 9
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