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Find the mean of the random variable.
Find the mean of the random variable. The random variable X is the number of people who
have a college degree in a randomly selected group of four adults from a particular town. Its
probability distribution is given in the table.
Solution
The mean is sum(x*P(x))

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Find the mean of the random variable. Find the mean of the ran.pdf

  • 1. Find the mean of the random variable. Find the mean of the random variable. The random variable X is the number of people who have a college degree in a randomly selected group of four adults from a particular town. Its probability distribution is given in the table. Solution The mean is sum(x*P(x))