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1.) Complete the table below and find the variance and standard deviation of the following probability distribution. X P(X) X - P(X) X2 . P(X)

1.) Complete the table below and find the variance and standard deviation of the following probability distribution.

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X P(X) X - P(X) X2 . P(X) 17 0.2 18 0.3 19 0.2 20 0. 1 21 0.2

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