Joint distribution of weather conditions

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Joint Distribution of Weather Conditions and Commuting Times

                                 Rain (X=0)                    No Rain (X=1)               Total

Long Commute (Y=0)

0.15

0.07

0.22

Short Commute (Y=1)

0.15

0.63

0.78

Total

0.30

0.70

1.00

Use the probability distribution given in Table 2.2 to compute (a) E(Y) and E(X); (b) σ2x and σ2Y; and (c) σXY and corr(X,Y).

Reference no: EM13894085

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