Question

Q:

Diketahui data 8,3,7,4,6,8
Tentukan:

•Jangkauan
•Simpangan Rata-rata
•Standar deviasi

Gunakan cara! ​

Answer 1

Jawab:

Penjelasan dengan langkah-langkah:

3, 4, 6, 7, 8, 8

●Jangkauan = Xmaks - Xmin = 8 - 3 = 5

● Rata-rata = (3 + 4 + 6 + 7 + 8 + 8)/6 = 36/6 = 6

SR = (3-6 + 4-6 + 6-6 + 7-6 + 8-6 + 8-6)/6

SR = (-3 + (-2) + 0 + 1 + 2 + 2)/6

SR = 0/6

SR = 0

● Variansi = {(3-6)² + (4-6)² + (6-6)² + (7-6)² + (8-6)² + (8-6)²}/6

Variansi = {(-3)² + (-2)² + (0)² + (1)² + (2)² + (2)²}/6

Variansi = {9 + 4 + 0 + 1 + 4 + 4}/6

Variansi = {22}/6

Variansi = 3.67

Simpangan baku = V3.67

Simpangan baku = 1.916