The data for this lab was collected from 4 different Math 10 classes at De Anza from Spring 2022: 2 hybrid sections, one synchronous online class, and one asynchronous online class. These classes were not randomly selected. Rather, they were the classes of two De Anza instructors working together to collect some data for this lab assignment.

Conceptual Questions

1. We could describe the data that was collected for this survey as either a population or as a sample. Suppose we wanted to describe this data as a sample. Whatpopulation does this sample come from? Please use as much detail as possible in your answer.

2. This sample isnot representative of the population. Why not? What types of bias(es) exist in this sample? Use the vocabulary we use for the types of biases in our book (selection, self-selection, response, non-response). Explain your answer.

3. If you had all the resources you needed, how would you create more representative sample of all Math 10 students at De Anza College in a given quarter?

4. Would analysis of these data be an observational study or an experiment? Explain why.