Find the expected value of the random variable. egin{tabular}{l|cccc} ( mathbf{x} ) & 2 & 3 & 4 & 5 \ hline ( mathbf{P}(mathbf{x}) ) & 0.4 & 0.2 & 0.3 & 0.1 end{tabular} What is the expected value? (Type an integer or a decimal.)
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