tolong di bantu nomor 27 beserta cara nya

Rata-rata = jumlah seluruh nilai / banyak nilai

Rata2 = (10+p+15+22+16+19+15)/8
15 = (97 + p) / 8
15 x 8 = 97 + p
120 = 97 + p
120 - 97 = p
33 = p
Modus = 15