Using the star-dataset found here: https://github.com/stringfestdata/advancing-into-analytics-book/blob/main/ch-1.xlsx (click download)

1. Calculate and report the average and standard deviation of the variable totexpk.

2. What is the problem with reporting the average and standard deviation of the id variable as a measure to describe a typical score (and its associated variability)?

3. Why can't you calculate a mathematical average for the variable race? What could you use instead to describe this variable?

4. Report the number and proportion of boys and girls in the dataset.