PLS HELP!! In a class of 30 students, the height of all students was measured and assembled in the table below. Find the value of a.

A. 17
B. 8
C. 27
D. 14

PLS HELP In a class of 30 students the height of all students was measured and assembled in the table below Find the value of a A 17 B 8 C 27 D 14 class=