Question

Fair coin is tossed 8 times probability of head at least once

Answer 1

Answer:

255 / 256

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Step-by-step explanation:

# possible outcomes = 2⁸ = 256

# ways no heads = # ways all tails = 1

P(no heads) = ( # ways no heads ) / ( # possible outcomes ) = 1 / 256

P(at least one head)

= 1 - P(no heads)

= 1 -  1 / 256

= 255 / 256