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**Unformatted text preview: **a) After finding the mean above, choose 2 nd , List , L1 , ∧ , 2 , STO , 2 nd , List, L4 . This will square the values of X and store the values in column L4 . b) Choose 2 nd , List , L4, , 2 nd , List , L2 , STO , 2 nd , List , L5 . This multiplies the squared x’s by the corresponding probabilities and stores the results in L5 . c) Choose STAT , Calc , 1-Var Stats , 2 nd , List , L3 . Hit Enter . d) The value that you see for Σ x is the value of ( 29 ∑ = x X P x 2 . e) To get the variance, subtract μ 2 from the number obtained in (d). 3. To find the standard deviation of the distribution, take the square root of the number obtained in part 2, above....

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