Following is the data about the ages of 30 students of class VI. Prepare a table using tally marks.

11, 12, 11, 13, 14, 11, 12, 13, 15, 13, 13, 16, 14, 13, 14, 13, 12, 14, 13, 12, 14, 13, 13, 12, 14, 14, 13, 12, 13, 14

(i) How many students have completed 13 years of age?

(ii) Maximum number of students are of which age?

(iii) How many students have not yet completed 14 years of age?