tolong bantu yah dgn rumus yg selengkap-lengkapnya

jawab

Mean = x - 3 + x - 1 + 7 + x + 2x - 1 + 3x - 5 / 6
3,5 = x + x + x + 2x + 3x - 3 - 1 + 7 - 1 - 5 / 6
3,5 = 8x - 3 / 6
8x - 3 = 3,5 × 6
8x - 3 = 21
8x = 21 + 3
8x = 24
x = 24/8
x = 3

Data I = x - 3 = 3 - 3 = 0
Data II = x - 1 = 3 - 1 = 2
Data III = 7
Data IV = x = 3
Data V = 2x - 1 = 2(3) - 1 = 6 - 1 = 5
Data VI = 3x - 5 = 3(3) - 5 = 9 - 5 = 4

diperoleh data sbb :

0,2,3,4,5,7

maka,
median
= (3 + 4) / 2
= 7/2
= 3,5

jawaban (B)

semoga membantu