question_answer

If the median of the following frequency distribution is 28.5 then the values of f1 and f2 are respectively _______

Class interval	0-10	10-20	20-30	30-40	40-50	50-60	Total
Frequency	5	F1	20	F2	8	5	60

A) 9 and 13                                                           

B)  7 and 15     

C)  8 and 14                                                          

D)  7 and 13

E)  None of these