The library ponor a che club for member of all age and kill level. Currently, the age of the member are 7, 9, 10, 11, 13, 14, 15, 16, 18, 19, 20, 21, and 22. The librarian ue a hitogram to track the number of member in different age group. For thi ituation, which i the appropriate way to label the age interval on the x-axi?
