A fair coin is tossed 8 times. Find the probability that it shows heads at least once

• the probability of showing at least once is equal to the probability not showing head
  = 1 - 8C0/ 2^8
  = 1 - 1/256
  = 255/256
• 9 years agoHelpfull: Yes(5) No(0)
• coin tossed 8 times ,
  Then Sample space is = 2^8 = 256
  The sample space of getting no Head = 1
  The sample space of at least once head = 256-1 =255
  probability that it shows heads at least once =255/256 =0.99609375
  
  
  
• 9 years agoHelpfull: Yes(0) No(0)