1. What is the significance or importance of outlier detection? Explain, in short, (example may be in an excel sheet or within this same word document). (1 point)

2. Consider the following data values: 2.2, 7.8, -4.4, 0.0, -1.2, 3.9, 4.9, 2.0, -5.7, -7.9, -4.9, 28.7, 4.9. Which data points are outliers, according to Tukey's fences method?