Exercises: Typo confusion

[dKvale]

Day 5 exercise

https://tidy-mn.github.io/R-camp-penguins/page/exercise/day5/05-1-left-and-anti-joins.html

Students were confused by "typo" issue in data - asking how they would know or suspect that the data was a typo? Potential to update the narrative to suggest there may be upcoming data problems, or to make the mistake more obvious (such as "9999999"), or revisit this part of the exercise.