Question

Kakak kakak ada yg bisa bantu ngga sama penjelasannya ya

Answer 1

Verified answer

Jawab

n = 30 , Xg= p

n1 = 20%x 30 = 6, x1= p +0,1
n2 = 40%x30 = 12 , x2 = p- 0,1
n3 = 10%x30 = 3, x3 = p -0,5
n4 = 30%x30 = 9 , x4 = p+q

30(p)     = 6(p+0,1) + 12(p-0,1) + 3(p-0,5) + 9(p+q)
30 p = 6p + 0,6 +12p - 1,2 + 3p - 1,5 + 9p + 9q
30p = 30p - 2,1 + 9q
9q = 2,1
q = 2,1 /9 = 21/90 = 7/30