Question
Use the probability distribution given in the table below and consider two new random variables, W =5+9 X and V =3+8 Y , to answer
Use the probability distribution given in the table below and consider two new random variables, W =5+9X and V =3+8Y, to answer the following questions
Joint Distribution of Weather Conditions and Commuting Times | |||
Rain (X = 0) | No Rain (X = 1) | Total | |
Long commute (Y = 0) | 0.09 | 0.29 | 0.38 |
Short commute (Y = 1) | 0.55 | 0.07 | 0.62 |
Total | 0.64 | 0.36 | 1 |
1) Compute the mean of W. E(W)=? (Round to two decimals)
2) Compute the mean of V. E(V)=? (Round to two decimals)
3) Compute the variance of W. variance(W)=? (Round to FOUR decimals)
4) Compute the variance of V. variance(V)=? (Round to FOUR decimals)
5)Compute the covariance of W and V. (Round to FOUR decimals)
6)Compute the correlation of W and V (Round to FOUR decimals)
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