Chapter 16 – Probability

13. Fill in the blanks in following table: (i) 1/3 1/5 1/15 . . . 13. Fill in the blanks in following table: (i) 1/3 1/5 1/15 . . . November 5, 2021 Category: Chapter 16 - Probability , Maths , NCERT Exemplar Class 11 ,

12. Check whether the following probabilities P(A) and P(B) are consistently defined (ii) P(A) = 0.5, P(B) = 0.4, P(A ∪ B) = 0.8 12. Check whether the following probabilities P(A) and P(B) are consistently defined (ii) P(A) = 0.5 P(A ∪ B) = 0.8 P(B) = 0.4 November 5, 2021 Category: Chapter 16 - [...]

12. Check whether the following probabilities P(A) and P(B) are consistently defined (i) P(A) = 0.5, P(B) = 0.7, P(A ∩ B) = 0.6 12. Check whether the following probabilities P(A) and P(B) are consistently defined (i) P(A) = 0.5 P(A ∩ B) = 0.6 P(B) = 0.7 November 5, 2021 Category: Chapter 16 - [...]

11. In a lottery, a person choses six different natural numbers at random from 1 to 20, and if these six numbers match with the six numbers already fixed by the lottery committee, he wins the prize. What is the probability of winning the prize in the game? [Hint order of the numbers is not [...]

10. A letter is chosen at random from the word ‘ASSASSINATION’. Find the probability that letter is (i) a vowel (ii) a consonant 10. A letter is chosen at random from the word ‘ASSASSINATION’. Find the probability that letter is (i) a vowel (ii) a consonant November 5, 2021 Category: Chapter 16 - Probability , [...]

9. If 11/2 is the probability of an event, what is the probability of the event ‘not A’. 9. If 11/2 is the probability of an event what is the probability of the event ‘not A’. November 5, 2021 Category: Chapter 16 - Probability , Maths , NCERT Exemplar Class 11 ,

8. Three coins are tossed once. Find the probability of getting (i) 3 heads (ii) 2 heads (iii) atleast 2 heads (iv) atmost 2 heads (v) no head (vi) 3 tails (vii) exactly two tails (viii) no tail (ix) atmost two tails 16. A die is thrown repeatedly untill a six comes up. What is [...]

7. A fair coin is tossed four times, and a person win Re 1 for each head and lose Rs 1.50 for each tail that turns up. From the sample space calculate how many different amounts of money you can have after four tosses and the probability of having each of these amounts. 16. A [...]

6. There are four men and six women on the city council. If one council member is selected for a committee at random, how likely is it that it is a woman? 6. There are four men and six women on the city council. If one council member is selected for a committee at random [...]

5. A fair coin with 1 marked on one face and 6 on the other and a fair die are both tossed. find the probability that the sum of numbers that turn up is (i) 3 (ii) 12 5. A fair coin with 1 marked on one face and 6 on the other and a [...]