1. Alvin is collecting data for his senior thesis, which focuses on the impact of his university's COVID policies on students' academic performance. He asks his mates in his fraternity and sports team to fill out his survey. In all, 120 students filled out his survey. Can Alvin use statistical analysis to generalize about the entire college student population based on his sample? Why or why not? (5 points)

1. Though the normal distribution is theoretical, we can apply what we know from it to many empirical distributions. However, the properties and knowledge from the normal distribution cannot be applied to the distribution of certain empirical variables. List two such variables. What makes the conclusion from the normal distribution inapplicable to these variables? (5 points).