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AP EAMCET202315 May 2023Morning ShiftMathematicsProbabilityActual

If eight coins are tossed simultaneously, then the probability of getting atleast six heads is

Options

  1. A37 64
  2. B37 512
  3. C37 256
  4. D37 128

Correct answer

C. 37 256

Step-by-step solution

Since 8 coins are tossed simultaneously. Hence total samples =2^8=256=n( ~S ) Number of ways of getting at least 6 heads = ^8 c₆+ ^8 c₇+ ^8 c₈=37=n( E ) Therefore, Required probability = n( E ) n( ~S ) = 37 256

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