Find the expected value of each random variable shown. а) х 2 3 4 P(X = x) 0.2 0.5 0.3 b) x 100 200 300 400 P(X = x) 0.3 0.1 0.4 0.2 a) The expected value is.

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.