ada yg bisa ajarin cara menghitung simpanan baku nomor 7 itu?pake caranya ya Mkasi

Jawaban ada di pic
Semoga membantu ^

Rata2 = 30/6 = 5

S = akar [((3-5)^2 + (4-5)^2 + 2(5-5)^2 + (6-5)^2 + (7-5)^2) : 6]
S = akar [10/6]
S = akar [15/9]
S = 1/3 akar 15 (E)