text: ## luan.cestari 3 years ago if you flip a coin 10 times, what is the probability you get 5 head ? I thought I would get 50% but I just got 25% using the Binomial Distribution. Why this happend? Links: my calculation-> https://www.google.com.br/search?q=(10!%2F(5!*(10-5)!))+*+(0.5%5E5)+*+((1-0.5)%5E(10-5))+%3D&aq=f&oq=(10!%2F(5!*(10-5)!))+*+(0.5%5E5)+*+((1-0.5)%5E(10-5))+%3D&sugexp=chrome,mod=16&sourceid=chrome&ie=UTF-8 the wikipedia article -> http://en.wikipedia.org/wiki/Binomial_distribution
  
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  1. satellite73
  
  what exactly does this mean "what is the probability to 5 head flipping a coin? I"
  
  2. satellite73
  
  question should be of the form if you flip a coin n times, what is the probability you get k head or if you flip a coin n times, what is the probability you get more than k less that k exactly k heads something like that
  
  3. luan.cestari
  
  I edited the question guys. Thank you =)