Given below are the height of a few students in a school.
129, 129, 142, 158, 143, 148, 143, 155, 158, 148, 148, 158, 148, 143, 155, 129, 129, 133, 155, 143, 142, 143, 133, 158, 158, 155, 129, 129, 143, 143, 143, 143, 158, 133, 158, 148
Find the modal height.