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BITSAT2023MathematicsProbabilityActual

A coin is tossed twice. Then, the probability that atleast one tail occurs is

Options

  1. A1 4
  2. B1 2
  3. C1 3
  4. D3 4

Correct answer

D. 3 4

Step-by-step solution

The sample space is S = HH , HT , TH , TT Let E be the event of getting atleast one tail aligned & E = HT , TH , TT & Required probability p & = Number of favourable outcomes Total number of outcomes = n ( E ) n ( S ) = 3 4 aligned

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