ECAT Mathematics Permutations Combinations and Probability Online Test

Mathematics Permutations Combinations and Probability MCQS Online Test

ECAT Math Permutations Combinations and Probability Online Test

Total Questions: 74
Time Allowed: 40 Minutes
Total Marks: 74
How to Attempt Test: Please choose the right Option in MCQ-type question.
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ECAT Math Permutations Combinations and Probability Chapter Online Test

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Math

1. 5 unbiased coins are tossed simultaneously. The probability of getting at least one head is

2. The letters of the JUNE taken all a t a time can be written in

3.

4.

5. In a class of 100 students, 60 drink tea, 50 drink coffee and 30 drink both. A student from this class is selected at random. The probability that the student takes at last one of 2 drinks is

6. There dice are thrown simultaneously find the probability to get greatest sum of dost?

7. The probability of getting 5, when one dice is called

8. 19!/19!(19–19)! = ?

9. ⁿPᵣ =

10. If probability of bulb being defective is 0.2. estimate how many defective bulb there would be in 600 bulbs

11. Two balanced dice are tossed once, the sample space when the integers on the faces of two dice are the same is

12. 6P1 is equal to

13. (n + 2)(n + 1) n =

14. A bad contains 3 white, 4 black and 2 red balls. If 2 balls are drawn at random, then the probability that both the balls are white is

15. All letters of the word “AGAIN” are permuted in all possible ways and the words so formed (with or without meaning) are written as in dictionary, then the 50th word is:

16. An arrangement of a finite number of objects taken some or all at a time is called their

17. 8.7.6/3.2.1 =

18. 6!/8! =

19. 1/20.19.18.17 =

20. Probability theory was introduced by ___________

21. If n (E₁) = 18 and n (E₂) = 6 and n (5) = 36 also E₁ and E₂ are independent then P(E₁ ∩ E₂) = ?

22. ⁿPᵣ = ?

23. How many signals can be given with three different flags when any number of them may be used

24. If A is an impossible event then P(A) = ?

25. The number of words that can be formed out of the letters of the word MURREE is


 

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7 Comments

  1. whats the right answer for this mcq’s arrangment of fintite number of objects taken some or all the time??? i have confusion with this

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