lbpope lbpope
  • 14-05-2017
  • Mathematics
contestada

When tossing 2 coins, the probability of getting exactly 1 tail is 1/4

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Аноним Аноним
  • 14-05-2017
The answer is false.

Exactly 1 tail would mean the probability is 1/2.
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irspow
irspow irspow
  • 14-05-2017
When tossing 2 coins the probability of getting one tail is:

P(HT)+P(TH)

P(HT)=(1/2)^2=1/4 and P(TH)=(1/2)^2=1/4

P(HT or TH)=1/4+1/4=2/4=1/2
Answer Link

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