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A box contains 10 red marbles, 20 blue m...

A box contains 10 red marbles, 20 blue marbles and 30 green marbles. 5 marbles are drawn from the box, what is the probability that (i) all will be blue (ii) atleast one will be green?

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To solve the problem step by step, we will calculate the probabilities for both parts of the question. ### Given: - Red marbles = 10 - Blue marbles = 20 - Green marbles = 30 - Total marbles = 10 + 20 + 30 = 60 ...
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NCERT ENGLISH-PROBABILITY-All Questions
  1. A and B are two events such that P(A) = 0. 54, P(B) = 0. 69and P(A nnB...

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  2. Three letters are dictated to three persons and an envelope is addres...

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  3. A box contains 10 red marbles, 20 blue marbles and 30 green marbles. ...

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  4. In a class of 60 students, 30 opted for NCC, 32 opted for NSS and 24 ...

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  5. The probability that a student will pass the final examination in b...

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  6. If 4-digit numbers greater than 5,000 are randomly formed from the di...

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  7. From the employees of a company, 5 persons are selected to represent ...

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  8. A die is rolled. Let E be the event “die shows 4” and F be the event ...

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  9. A coin is tossed three times, consider the following events. A : No...

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  10. Let a sample space be S = {omega1,omega2, .... ,omega6}. Which of the ...

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  11. A coin is tossed. If it shows head, we draw a ball from a bag consist...

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  12. Consider the experiment in which a coin is tossed repeatedly until a ...

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  13. Consider the experiment of rolling a die. Let A be the event 'getting...

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  14. Two dice are thrown and the sum fo the numbers which come up on the ...

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  15. Two coins (a one rupee coin and a two rupee coin) are tossed once. Fi...

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  16. Find the sample space associated with the experiment of rolling a pai...

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  17. In each of the following experiments specify appropriate sample space...

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  18. A box contains 1 red and 3 identical white balls. Two balls are drawn...

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  19. An experiment consists of boy girl composition of families with 2 c...

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  20. Three coins are tossed once. Let A denote the event ‘three heads snow...

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