Which type of graph would best show the number of cows forty farmers each own?

A bar graph would be the best type of graph to show the number of cows each of forty farmers owns. Each farmer's data can be represented by a separate bar, making it easy to compare the number of cows owned by each farmer at a glance. The x-axis would list the farmers, while the y-axis would represent the number of cows owned. This visual representation would effectively display the distribution of cows among the forty farmers.