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A 2n digit number starts with 2 and all ...

A `2n` digit number starts with 2 and all its digits are prime, then the probability that the sum of all 2 consecutive digits of the number is prime is a. `4xx2^(3n)` b. `4xx2^(-3n)` c. `2^(3n)` d. none of these

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CENGAGE PUBLICATION-PROBABILITY-All Questions
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  9. A die is rolled 4 times. The probability of getting a larger number ...

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

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  13. Numberse are selected at random, one at a time, from the two-digit num...

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  14. A lot contains 50 defective and 50 non-defective bulbs. Two bulbs are ...

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

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

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