1. Why is it important to perform exploratory data analysis?

2. If the mean and the median are approximately equal, what does it tell us?

3. What differentiates the "Kolmogorov-Smirnov" vs "Shapiro-Wilk" in the test of normality?

4. What does it mean to obtain significant results of the "Kolmogorov-Smirnov" and "Shapiro-Wilk" Test"

5. How a normal distribution will look like on the "Normal Q-Q Plot"?