Bab 4: Pilih Atur & Gabungan (T5) Flashcards

1
Q

Petua Pendaraban:

A

Jika sesuatu peristiwa boleh berlaku dalam m cara & peristiwa ke-2 boleh berlaku dalam n cara,

Maka: Boleh berlaku dalam mxn cara

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2
Q

Formula am:

A

n! = n (n-1)(n-2) x … x 3 x 2 x 1

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3
Q

Kriteria susunan (Linear):

A
  • Melibatkan semua objek
  • Melibatkan objek2 berbeza
  • Xda pengulangan
  • Xda syarat tertentu
  • Susunan secara linear
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4
Q

Formula susunan linear:

A

P = n!

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5
Q

Kriteria susunan (Membulat):

A
  • Melibatkan semua objek
  • Melibatkan objek2 berbeza
  • Xda pengulangan
  • Xda syarat tertentu
  • Susunan secara membulat
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6
Q

Formula susunan membulat:

A

Bil susunan linear / Bil susunan yg sama

n(n-1)!/n
Atau:
P = (n-1)!

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7
Q

Situasi berbeza (Susunan membulat):

A
  • Mengambil kira arah putaran:
    P = (n-1)!
  • X mengambil kira arah putaran:
    (n-1)!/2
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8
Q

Pilih atur (Linear):

A

nPr = n!/(n-r)!

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9
Q

Pilih atur (Membulat):

A

P = nPr/r

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10
Q

Objek secaman:

A

Objek yg sama yg terdapat dalam satu kumpulan

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11
Q

Formula objek secaman:

A

P = n!/(a! x b! x c!)

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12
Q

Pilih atur:

A

Proses pemilihan objek yg mempertimbangkan susunan & urutuannya

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13
Q

Gabungan:

A

Proses pemilihan objek xnpa mempertimbangkan susunan & aturnya

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14
Q

Contoh2 pilih atur:

A
  • Memilih kata kunci
  • Memilih no. telefon
  • Memilih no. 4 digit
  • Memilih susunan gambar
  • Memilih pengerusi, naib pengerusi, setiausaha persatuan
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15
Q

Contoh2 gabungan:

A
  • Memilih calon mewakili sekolah
  • Memilih saluran TV
  • Memilih Ahli Jawatan kuasa persatuan
  • Membentuk segi 3 drpd bucu2 sebuah heksagon
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16
Q

Rumus gabungan:

A

nCr = n!/(n-r)!r!