In a lottery 10000 tickets are sold and ten prizes are awarded. What is the probability of not getting a prize, if you buy one ticket?

9/10000
9/10
999/100
9999/10000

Correct Answer: 999/100

Explanation:

Total lottery tickets = 10000
Total prize in the lottery = 10
∴ Probability getting a prize
= 10/10000 = 1/1000
Now, probability of not getting a prize
= 1 - probability of getting a prize
= 1 - (1/1000)
= 999/1000

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