Jawaban:
143 cm (B)
Penjelasan dengan langkah-langkah:
Total tinggi siswa perempuan: 14 × 140cm = 1960cm
Total tinggi siswa laki - laki: 21 × 145cm = 3045cm
Total tinggi seluruh siswa: 1960cm + 3045cm = 5005cm
Rata-rata: 5005cm : ( 14 + 21 )= 143cm
..
[tex]\begin{aligned} Mean &= \frac{(14 × 140) + (21 × 145)}{21 + 14} \\&= \frac{1960 + 3045}{35} \\&= \frac{5005}{35} \\&= 143~cm~~~~~(B) \end{aligned}[/tex]
[tex]\begin{array}{lr}\texttt{Selamat Menunaikan Ibadah Puasa}\end{array}[/tex]
[tex]\boxed{\colorbox{ccddff}{Answered by Danial Alf'at | 03 - 04 - 2023}}[/tex]
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Verified answer
Jawaban:
143 cm (B)
Penjelasan dengan langkah-langkah:
Total tinggi siswa perempuan: 14 × 140cm = 1960cm
Total tinggi siswa laki - laki: 21 × 145cm = 3045cm
Total tinggi seluruh siswa: 1960cm + 3045cm = 5005cm
Rata-rata: 5005cm : ( 14 + 21 )= 143cm
Statistik dan Statistika
[Mean]
..
[tex]\begin{aligned} Mean &= \frac{(14 × 140) + (21 × 145)}{21 + 14} \\&= \frac{1960 + 3045}{35} \\&= \frac{5005}{35} \\&= 143~cm~~~~~(B) \end{aligned}[/tex]
[tex]\begin{array}{lr}\texttt{Selamat Menunaikan Ibadah Puasa}\end{array}[/tex]
[tex]\boxed{\colorbox{ccddff}{Answered by Danial Alf'at | 03 - 04 - 2023}}[/tex]