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In a n- sided regular polygon, the proba...

In a `n-` sided regular polygon, the probability that the two diagonal chosen at random will intersect inside the polygon is: (a.)`(2^n C_2)/(^(^(n C_(2-n)))C_2)` (b.) `("^(n(n-1))C_2)/(^(^(n C_(2-n)))C_2)` (c.) `(^n C_4)/(^(^(n C_2-n))C_2)` (d.) none of these

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CENGAGE PUBLICATION-PROBABILITY-All Questions
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  4. A three-digit number is selected at random from the set of all thre...

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  5. Words from the letters of the word PROBABILITY are formed by taking al...

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  6. The probability of winning a race by three persons A ,B , and C are 1/...

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  7. A die is rolled 4 times. The probability of getting a larger number ...

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  8. A die is thrown three times, find the probability that 4 appears on th...

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  10. find the projection of the vector vec a=2hat i+3 hat j+2 hat k, on the...

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  13. An urn contains m white and n black balls. A ball is drawn at random ...

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  14. If Aa n dB are two independent events such that P(A)=1//2 a n d P(B)=1...

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  15. Suppose the probability for A to win a game against B is 0.4. If A has...

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  16. A box contains two 50 paise coins, five 25 paise coins and a certain ...

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  17. In how many ways three girls and nine boys can be seated in two vans, ...

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  18. Five different marbles are placed in 5 different boxes randomly. Then ...

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  19. There are 10 prizes, five A's, three B's, and two C's placed in identi...

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  20. A mawn takes a step forward with probability 0.4 and backward with pro...

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