Berikut ini adalah pertanyaan dari Johnson988 pada mata pelajaran TI untuk jenjang Sekolah Menengah Atas
a) Getting Ace as your 2nd card when you got Jack as the 1st card, when taking two cards from a
deck w/o replacements
b) Getting a 6 when you got 6 from the first roll, when rolling a die twice
c) Getting a total of 4 or 6 when you got 2 from the first roll, when rolling a die twice
Jawaban dan Penjelasan
Berikut ini adalah pilihan jawaban terbaik dari pertanyaan diatas.
Jawaban:
What is the probability that when two cards are drawn from a deck of cards without
replacement that both of them will be 8’s?
(ℎ 8
′
) = ( 8) ∙ ( 8)
( 8) =
4
52
There are three 8’s left in the deck if one is pulled and not replaced, and 51 total
cards remaining.
( 8) =
3
51
(ℎ 8
′
) =
4
52 ∙
3
51 =
12
2652 =
1
221 = .0045 .45%
What is the probability that both cards drawn (without replacement) will be spades?
(ℎ ) = ( ) ∙ ( )
( ) =
13
52
There are 12 spades left in the deck if one is pulled and not replaced, and 51 total
cards remaining.
( ) =
12
51
(ℎ ) =
13
52 ∙
12
51 =
156
2652 =
1
17 = .0588 5.88%
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Last Update: Sat, 21 Aug 21