what is the probability of drawing a spade each time a card is drawn from a deck of 52 cards 3 times, if replacement occurs each time? a.1/2197 b.11/850 c.1/64 d.3/4

Respuesta :

Answer:  The correct option is (c) [tex]\dfrac{1}{64}.[/tex]

Step-by-step explanation:  We are given to find the probability of drawing a spade each time a card is drawn from a deck of 52 cards 3 times if replacement occurs each time.

Let S denote the sample space for the experiment of drawing a card from a deck of 52 cards

and A denote the event of drawing a spade from the deck of 52 cards.

Then, n(S) = 52  and  n(A) = 13.

So, probability of event A will be

[tex]P(A)=\dfrac{n(A)}{n(S)}=\dfrac{13}{52}=\dfrac{1}{4}.[/tex]

Since replacement occur each time, so the  probability of drawing a spade each time a card is drawn from a deck of 52 cards 3 times will be

[tex]P=P(A)\times P(A)\times P(A)=\dfrac{1}{4}\times\dfrac{1}{4}\times\dfrac{1}{4}=\dfrac{1}{64}.[/tex]

Thus, the required probability is [tex]\dfrac{1}{64}.[/tex]

Option (c) is CORRECT.