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A fair coin is tossed 2n times. The chan...

A fair coin is tossed 2n times. The change that number of times one gets head is not equal to the number of times one gets tail is

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A coin is tossed 2n times. The chance that the number of times one gets head is not equal to the number of times one gets tails is ((2n !))/((n !)^2)(1/2)^(2n) b. 1-((2n !))/((n !)^2) c. 1-((2n !))/((n !)^2)1/(4^n)^ d. none of these

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CENGAGE PUBLICATION-PROBABILITY-All Questions
  1. A bag contains b blue balls and r red balls. If two balls are drawn at...

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  2. The chance of an event happening is the square of the chance of a seco...

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  3. A fair coin is tossed 2n times. The change that number of times one ge...

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  4. Two numbers are randomly selected and multiplied. Consider two events ...

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  5. A and B are two events defined as follows: A:It rains today withP(A)...

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  6. The probability that a married man watches certain TV show is 0.4 and ...

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  7. P(A)=3//8; P(B)=1//2; P(AuuB)=5//8 , which of the following do/does ho...

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  8. A bag initially contains 1 red and 2 blue balls. An experiment consi...

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  9. Which of the following statement is/are correct? (a)Three coins are t...

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  10. The probability that a 50-years-old man will be alive at 60 is 0.83 an...

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  11. If four vertices a regular octagon are chosen at random, then the prob...

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  12. Six fair dice are thrown independently. The probability that three are...

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  13. If the letters of the word MATHEMATICS are arranged arbitrarily, the p...

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  14. Two squares of 1xx1 are chosen at random on a chestboard. What is the ...

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  15. In a game of chance a player throws a pair of dice and scores points e...

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  16. If a and b are randomly chosen from the set {1,2,3,4,5,6,7,8,9}, then ...

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  17. A word of at least 5 letters is made at random from 3 vowels and 3 con...

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  18. Matrices of order 3xx3 are formed by using the elements of the set A={...

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  19. A box contains 10 tickets numbered from 1 to 10 . Two tickets are draw...

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  20. Three vertices are chosen randomly from the seven vertices of a regula...

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