CBSE Class 11 Probability Worksheet E

Download free printable worksheets for your students. All worksheets are in pdf format with the answers on the next page. Please give the questions to the child and then compare answers with the suggested answers provided by us. Free worksheets with questions and answers are available for all subjects. Use the worksheets to get better marks in tests and exams.

1. In a random sampling three items are selected from a lot. Each item is tested and classified as defective (D) or non – defective (H). Write the sample space.

2. Let S ={W₁, W₂ , W₃ , W₄ , W₅ , W₆}be sample space. Probability to outcome valid.

3. The odds in favour of an event are 3:5, find the probability of occurrence of this event.

4. What is the probability that an ordinary year has 53 Sundays?

5. If odds against an event be 7:9, find the probability of non-occurrence of this event.

6. One card is drawn from a well shuffled deck of 52 cards. If each out come is equally likely calculate the probability that the card will be.

(i) a diamond (ii) Not an ace (iii) A black card (iv) Not a diamond.

7. In a lottery, a person chooses six different natural no. at random from 1 to 20 and if these six no. match with six no. already fixed by the lottery committee, he wins the prize. What is the probability of winning the prize in the game?

8. From the employees of a company, 5 persons are elected to represent them in the managing committee of the company.

A person is selected at random from this group as a spoke person what is the probability the a spoke person will be either male or over 35 yr.

 9. A die has two faces each with no. 1 three faces each with no. 2 and one face with no. 3 if the die is rolled once, determine (i) P (2) (ii) P (1 or 3) (iii) P(not 3)

10. Find the probability that in a random arrangement of the letters of the word UNIVERSITY the two I’s come together.

11. A bag contains 50 tickets no. 1,2,3,……,50 of which five are drawn at random and arranges in ascending order of magnitude  x ₁< x ₂< x₃ < x₄ < x₅ find the probability that x ₃= 30

Click on link below to download CBSE Class 11 Probability Worksheet E.