As the previous question, use the data set USArrests:

Create a histogram for assault:

hist$($USArrests $ Assault, breaks$=12)$

In this case, we are asking $R$ to create $12$ bins. But, $R$ may not produce exactly $12$ bins.

Run the code. How many bins $($bars$)$ are created?

If the number of classes $($bins$)$ decreases $($check by changing the breaks $=12$ to breaks $=8),$ what happens to the class $($bin$)$ width?