question_answer

Consider the following frequency distributor of the height of 60 students of a class. The sun of lower limit of the modal class and upper limit of the median class is:

Height	150-155	155-160	160-165	165-170	170-175	175-180
Number of Students	15	13	10	8	9	5

A)  310                             

B)  315

C)  320                             

D)  330

E)  None of these