I have been in Miami for 10 days; therefore, I can't think at the moment. Two balance coins are flipped. What are the expect value and variance of the number of heads observed? Thanks for the help.
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Originally Posted by dwsmith Two balance coins are flipped. What are the expect value and variance of the number of heads observed? The values of the outcomes are . The probabilities are:
Originally Posted by Plato The values of the outcomes are . The probabilities are: I knew it would be easy. Thanks.