Question

ini gimana caranya deh​

Answer 1

Jawaban:

Penyelesaian :

Data ulangan siswa kelas VI dari 10 siswa

• 8, 9, 8, 7, 6, 5, 8, 7, 10, 9
• Nilai 5 = 1 siswa
• Nilai 6 = 1 siswa
• Nilai 7 = 2 siswa
• Nilai 8 = 3 siswa
• Nilai 9 = 2 siswa
• Nilai 10 = 1 siswa

Rata - Rata atau Mean

[tex] \sf Mean = \frac{Jumlah \: nilai}{Banyak \: data} [/tex]

[tex]\sf Mean = \frac{5 \: + \: 6 \: + \: (7 \times 2) \: + \: (8 \times 3) \: + \: (9 \times 2) \: + \: 10}{10} [/tex]

[tex]\sf Mean = \frac{5 \: + \: 6 \: + \: 14 \: + \: 24 \: + \: 18 \: + \: 10 }{10} [/tex]

[tex]\sf Mean = \frac{5 \: + \: 6 \: + \: 14 \: + \: 24 \: + \: 28}{10} [/tex]

[tex]\sf Mean = \frac{5 \: + \: 6 \: + \: 14 \: + \: 52}{10} [/tex]

[tex]\sf Mean = \frac{5 \: + \: 6 \: + \: 66}{10} [/tex]

[tex]\sf Mean = \frac{5 \: + \: 72}{10} [/tex]

[tex]\sf Mean = \frac{77}{10} [/tex]

[tex]\sf Mean = 7,7[/tex]

'비상'