101 Essays That Will Change The Way You Think

101 Essays That Will Change The Way You Think

Matematika Kak mohon bantuanya terima kasih​​​

Kak mohon bantuanya terima kasih​​​

Jawaban:

4/10 atau 2/5

Penjelasan dengan langkah-langkah:

3 bola merah 2 bola biru diambil 2 bola sekaligus

n(s) = 5C2= 5!/3!2! = 5×4/2 = 10

bola berwarna sama

  • 2 bola merah= 3C2= 3
  • 2 bola biru = 2C2= 1

peluang terambil 2 bola warna sama

= n(A)/n(s)

=3+1/10

=4/10

= 2/5

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