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9 August, 00:54

If we expect to get tails 400 times in a coin flip experiment, how many times would the coin be flipped?

A. 100

B. 200

C. 400

D. 800

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Answers (2)
  1. 9 August, 03:17
    0
    D) 800 because you can't get 400 if you didn't flip the coin over 400 times ... this is because the coin has a 50/50 chance of heads or tails so you double the expectation
  2. 9 August, 03:52
    0
    D because you got a fifty fifty Chance with a coin
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