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Mathematics 21 Online
OpenStudy (anonymous):

We are flipping four coins. Outcomes in the sample space are represented by strings of Hs and Ts such as TTHT and HHTT. a. How many elements are in this sample space? b. Express the event “there are more heads than tails” as a set. c. What is the probability that there are more heads than tails? d. What is the probability that there are an equal number of heads and tails?

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