Question 1049183:  Three unbiased coins are tossed. What is the probability of getting at most two heads? 
 Answer by Fombitz(32388)      (Show Source): 
You can  put this solution on YOUR website! Eight possible outcomes, 
HHH, 3 H 
HHT, 2 H <-- 
HTH, 2 H <-- 
HTT, 1 H <-- 
THH, 2 H <-- 
THT, 1 H <-- 
TTH, 1 H <-- 
TTT, 0 H <-- 
At most 2 means less than or equal to 2, 
  
 
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