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# 计量经济学作业代写 Introductory econometrics代写

569

## 30 points

### Q1. [ 12 points] 计量经济学作业代写

Suppose that you collected data on hourly wage and the number of years of schooling for 200 employees in Riverside. The data is summarized as follows: 40 employees have an income of \$10 per hour and 3 years of schooling, 20 employees have an income of \$10 per hour and 4 years of schooling, 60 employees have an income of \$ 16 per hour and 3 years of schooling, 80 employees have an income of \$16 per hour and 4 years of schooling. Please use W for wage and S for years of schooling.

1. Find the join and marginal probabilities? (hint: you may use a table with wage (W) and years of schooling (S).

2. Find the probability of W=10 given that the S=3?

3. Find the probability of S=4 given that W=16?

4. Find the mean or expected value of wage? Find the variance of wage?

5. Find the mean or expected value of years of schooling? Find the variance of years of schooling?

6. Find the covariance between wage and years of schooling? Are they ( S and W)

independent?

7. Find the expected value (mean) of wage given that the S=3? Find the variance of wage given that S=3?

### Q2. [ 12 points] 计量经济学作业代写

The table below represents a data on oil prices and the number of daily cases of COVID-19 where Y is the oil price and X is the COVID-19 new cases:

### Q.3 [ 6 points]

The regression output below represents the impact of income and price on the quantity of demand.

a. Interpret and explain the price and income coefficients?

b. Find the R-square and SSE?

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