kak Tolong Jawab dong pleasee ...No. 6 ma 7

No 7
a 10,14,15,15,15,17,18 -> median = 15
b 25,25,28,30,37,38 -> median = 58/2 = 29
c 743,750,750,800,800,841,853,853 -> median = 1.600/2 = 800
d 4,5;5,4;6,3;7,8;8,1;9,9 -> median = 14,1/2 = 7,05