Question 49 of 55intermediate🔧 ApplyShort Answer3 marks
In a certain lottery 10,000 tickets are sold and ten equal prizes are awarded. What is the probability of not getting a prize if you buy (a) one ticket (b) two tickets (c) 10 tickets.
(a)
Answer
999/1000
(b)
Answer
C(9990, 2)/C(10000, 2) = ()/()
(c)
Answer
C(9990, 10)/C(10000, 10)
Explanation
This question is from the NCERT textbook Exercise on probability. The key concept is finding the probability of NOT getting a prize, which means selecting tickets from the non-prize category. With 10,000 total tickets and 10 prizes, there are 9,990 non-prize tickets. For multiple tickets, we use combinations to find favorable outcomes.