Tolong nmr 14 sama 15 pakai cara ya!!!

4,4,5,5,5,5,6,6,6,6,6,,7,7,7,7,(7,8,)8,8,8,8,8,8,8,8,9,9,9,10,10,10,10
= 7+8/2
= 7,5

14.
4,4,5,5,5,5,6,6,6,6,6,7,7,7,7,7,8,8,8,8,8,8,8,8,8,9,9,9,10,10,10,10
= (7+8)/2
= 15/2
= 7.5 (B)


15. rata rata nilai = 5+6+7+8+9+10 / 6 = 7.5

banyak siswa di atas rata² = 11+6+2 =
19 anak (D)