PPT Slide

• Calculate the total probability of 2 different combined or joint events occurring.

  P(2 heads or 2 tails) = P(2 heads) + P(2 tails)
  
  = P(head) X P(head) + P(tail) X P(tail)
  = 1/2 X 1/2 + 1/2 X 1/2
  = 1/4 + 1/4
  = 1/2

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