Question
A company is interested in forecasting sales in the final quarter of the year based on...
A company is interested in forecasting sales in the final quarter of the year based on the first three quarters by fitting a linear regression model.
| sales | quarter |
| 227 | 1 |
| 287 | 2 |
| 316 | 3 |
what is the proportion of the variability in sales can be explained by this model?
predict the sales for the fourth quarter
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