Before data is entered into the regression calculator, some data may be excluded. Explain why the data pair (0, 100) was excluded for the comparison of hours slept the night before and the test score. Describe what this data point represents. If it was included, would the trend line describe the data well?

Answer:

The data pair (0, 100) was excluded because it is an outlier that does not follow the general trend. This data point represents a student who received a score of 100 after getting 0 hours of sleep. If this point were included in the regression, the trend line would not describe the data well because the outlier would skew the results, making the model less accurate for representing the typical relationship between sleep and test scores.