Probability p of heads is tossed
A coin with a probability p of heads is tossed independently n times. Let Xi=1 if the ith toss results in a head, and let Xi = 0 if the ith toss is a tail. What is E(X1X2X3.......Xn)?
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All the major stock market indexes posted heavy losses in 2008. The mean one-year return for stocks in the S&P 500, a group of very large companies, was -38.5%.
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Suppose the average number of lions seen on a day one tour in a safari park is 5, what is the probability that on a particular day tourist will see frwer than 4 lions?
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