The questions below relate to the work done in Lab 2. Give all numeric answers correct to 2 decimal places.

1. What is the mean of x in the sets of the anscombes’ dataset?
2. What is the mean of y in the sets of the anscombes’ dataset?
3. What is the correlation between x and y in the sets of the anscombes’ dataset?
4. What is the standard deviation of x in the star dataset of the Datasaurus Dozen?
5. What is the standard deviation of y in the star dataset of the Datasaurus Dozen?
6. What is the correlation between x and y in the star dataset of the Datasaurus Dozen?
7. For the golf data you fit a linear regression model with accur as the outcome and distance as the predictor. What is the intercept value in the linear regression model?
8. For the golf data you fit a linear regression model with accur as the outcome and distance as the predictor. What is the slope value in the linear regression model?
9. Using on the model predictions for the golf data, what is the difference between the observed accuracy and the predicted accuracy for the first observation in the dataset?