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what is the probability of getting 2 tails in tossing 3 coins?​

Sagot :

Answer:

3/8 or 0.38

Step-by-step explanation:

  • List all the possible combinations in sample space : {HHH, HHT, HTH, THH, THT, TTH, HTT, TTT}
  • Count the number of combinations in Sample Space : S = 8
  • Find the combinations that corresponds to the event : {THT, TTH, HTT}
  • Count the number of elements that corresponds to the event : E = 3
  • Use the formula : P(E) = n(E)/n(S)
  • Substitute the values : P(E) = 3/8
  • The answer is 3/8
  • or if you want to answer in decimal, divide 8 by 3
  • 3÷8 = 0.375
  • round up the decimal to the nearest hundredth
  • The other answer is 0.38