10% Human: How Your Body's Microbes Hold the Key to Health and Happiness

10% Human: How Your Body's Microbes Hold the Key to Health and Happiness

Matematika tolong math materi peluang kelas 12 ​

tolong math materi peluang kelas 12 ​

Penjelasan dengan langkah-langkah:

  • Putih (P) = 2
  • Hitam (H) = 3
  • TOTAL = 5
  • Diambil 2 bola, tiap pengambilan dikembalikan
  • Pengambilan 140 x

a) P(2H) = [tex] \frac{3}{5} \times \frac{3}{5} [/tex] = [tex] \frac{9}{25} [/tex]

Frekuensi Harapan = [tex] \frac{9}{25} \times 140[/tex] = 50,4 ≈ 50

b) P(1H, 1P) = [tex] \frac{3}{5} \times \frac{2}{5} \times 2 [/tex] = [tex] \frac{12}{25} [/tex]

Frekuensi Harapan = [tex] \frac{12}{25} \times 140[/tex] = 67,2 ≈ 67

[answer.2.content]