In a lottery 10,000 tickets are sold and ten equal prizes are awarded,. What is the probability of not getting a prove if you buy i. 1 ticket ii. two tickets iii. 10 tickets.

Explanation

Total number of tickets sold =10,000

Number prizes awarded =10

(i) If we buy one ticket
P (getting a prize) =1/1000

∴ P (not getting a prize) = `1−1/1000​=999/1000`
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(ii) If we buy two tickets
Number of tickets not awarded
=10,000−10=9990

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