Read and download free pdf of CBSE Class 11 Mathematics Probability Assignment Set B. Get printable school Assignments for Class 11 Probability. Standard 11 students should practise questions and answers given here for Probability in Grade 11 which will help them to strengthen their understanding of all important topics. Students should also download free pdf of Printable Worksheets for Class 11 Probability prepared as per the latest books and syllabus issued by NCERT, CBSE, KVS and do problems daily to score better marks in tests and examinations

## Probability Assignment for Class 11

Class 11 Probability students should refer to the following printable assignment in Pdf in standard 11. This test paper with questions and answers for Grade 11 Probability will be very useful for exams and help you to score good marks

### Class 11 Probability Assignment Pdf

Q14. The letter of the word ‘SOCIETY’ are placed at random in a row. What is the probability that the three vowels come together.

Ans. 1/7

Q15.Four digit numbers are formed by using the digit 1,2,3,4 and 5 without repeating any digit. Find the probability that a number, chosen at random, is an odd number.

Ans. 3/5

Q16. Two dice are thrown simultaneously. Find the probability of getting a doublet.

Ans. 1/6

Q17.What is the chance that a leap year, selected at random, will contain 53 Sundays?

Ans. 2/7

Q18. Find the probability of an event of getting Prime Number or Even number in a single throw of dice.

Ans.5/6

Q19. Find the probability of an event of getting two head in a tossing of three coins .

Ans. 3/8

Q20.Two unbiased dice are thrown. Find the probability that neither a doublet nor a total of 10 will appear.

Ans. 7/9

Q21. A card is drawn from deck of 52 cards. Find the probability of getting a king or a heart or a red card.

Ans. 7/13

Q22.The probabilities that a student will receive A, B, C or D grade are 0.40, 0.35, 0.15 and 0.10 respectively. Find the probability that a student will receive

(i) not an A grade

(ii B or C grade

(iii) at most C grade.

Ans.0.60,0.50,0.25.

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