Tentu kan mean, median, dan modus dari 40, 45, 40, 50, 40, 40, 42, 43, 40, 50, 55, 55
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40=5
42=1
43=1
45=1
50=1
55=2
Modus=40
Mean=jumlah data/banayk data
Mean=(40+45+40+50+40+40+42+43+40+50+55+55)/12
Mean=540/12
Mean=45
Median=nilaitengah(diurutkan)
Median=42
Jawaban:
mean : 45
median : 42,5
modus : 40
Penjelasan dengan langkah-langkah:
[tex]nilai \times frek = kumulatif \: frek \\ 40 \times 5 = 200 \\ 42 \times 1 = 42 \\ 43 \times 1 = 43 \\ 45 \times 1 = 45 \\ 50 \times 2 = 100 \\ 55 \times 2 = 110 \\ jumlah \: nilai = 540 \\ banyknya \: nilai =12\\ mean = \frac{jumlah \: nilai}{banyaknya \: nilai} = \frac{540}{12} = 45 \\ median = \frac{42 + 43}{2} = \frac{85}{2} = 42.5 \\ modus = 40[/tex]
mean: nilai rata²
median : nilai tengah
modus : nilai yg sering muncul
Semoga membantu
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