" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
x₁ = 76
n₁ = 30
n₂ = 4
x gabungan = x₁ . n₁ + x₂ . n₂ / n₁+n₂
75 = 76 . 30 + 4 . x₂ / 30+4
75 . 34 = 2280 + 4x₂
2550 = 2280 + 4x₂
4x₂ = 2550 - 2280
x₂ = 270 / 4
= 67,5
Jadi rata-rata ke empat siswa itu 67,5