dustydustlol989 dustydustlol989
  • 09-02-2024
  • Mathematics
contestada

There are n persons sitting in a row. Two of them are selected at random. The probability that the two selected persons are not together, is
a. 2/n
b. 1 āˆ’ 2/n
c. n(nāˆ’1)/(n+1)(n+2)
d. None of these

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