In Botswana, farmers let their cows roam freely, which puts them at risk of being injured or killed by predators. Various animals and insects have natural patterns that look like eyes on their bodies, which scare predators off. Researchers painted fake eyes on the cattle to determine if the method would deter predators and gathered the following data over the four-year study:

	Number killed	Total Number of Cows
Painted with Eyes	0	683
Unpainted	4	543
Cross Marks	15	835

Discuss the answers to these questions in your forum post:

1. What or who is the population of interest?
2. What or who were the experimental units?
3. What was the explanatory variable?
4. What were the treatments?
5. What was the response variable?
6. graph that could be used to display this data. Note that more than one type of graph is possible, and share your graph in your discussion post https://www.npr.org/2020/08/23/905181717/study-finds-painting-eyes-on-cows-butts-can-save-their-lives (podcast)