Let Z: ' The waiting time until the car arrives during rush hour [in minutes]'. The distribution of Z can be approximated by applying the following...
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 Let Z: " The waiting time until the car arrives during rush hour [in minutes]". The distribution of Z can be

approximated by applying the following linear transformation to X: Z = 1.6X + 10.

(a) Compute E[Z] and V [Z].

(b) Compute the covariance Cov[X, Z]

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