SOLUTION: If a card is drawn at random from a standard deck of 52 cards, what is the probability of getting: a. A head card b. A queen card c. A red card d. A face card e. A red face ca

Algebra ->  Probability-and-statistics -> SOLUTION: If a card is drawn at random from a standard deck of 52 cards, what is the probability of getting: a. A head card b. A queen card c. A red card d. A face card e. A red face ca      Log On


   



Question 1103630: If a card is drawn at random from a standard deck of 52 cards, what is the probability of getting:
a. A head card
b. A queen card
c. A red card
d. A face card
e. A red face card

Answer by Edwin McCravy(20060) About Me  (Show Source):
You can put this solution on YOUR website!

a. A head card
That's one of these 12

                                                J♥  Q♥  K♥ 
                                                J♦  Q♦  K♦
                                                J♠  Q♠  K♠  
                                                J♣  Q♣  K♣ 

out of these 52


A♥   2♥   3♥   4♥   5♥   6♥   7♥   8♥  9♥  10♥  J♥  Q♥  K♥ 
A♦   2♦   3♦   4♦   5♦   6♦   7♦   8♦  9♦  10♦  J♦  Q♦  K♦
A♠   2♠   3♠   4♠   5♠   6♠   7♠   8♠  9♠  10♠  J♠  Q♠  K♠  
A♣   2♣   3♣   4♣   5♣   6♣   7♣   8♣  9♣  10♣  J♣  Q♣  K♣ 

That's 12 out of 52 or a probability of 12/52 which reduces to 3/13
-----

b. A queen card
That's one of these 4


                                                    Q♥ 
                                                    Q♦
                                                    Q♠  
                                                    Q♣ 

out of these 52


A♥   2♥   3♥   4♥   5♥   6♥   7♥   8♥  9♥  10♥  J♥  Q♥  K♥ 
A♦   2♦   3♦   4♦   5♦   6♦   7♦   8♦  9♦  10♦  J♦  Q♦  K♦
A♠   2♠   3♠   4♠   5♠   6♠   7♠   8♠  9♠  10♠  J♠  Q♠  K♠  
A♣   2♣   3♣   4♣   5♣   6♣   7♣   8♣  9♣  10♣  J♣  Q♣  K♣ 

That's 4 out of 52 or a probability of 4/52 which reduces to 1/13
---

c. a red card
That's one of these 26


A♥   2♥   3♥   4♥   5♥   6♥   7♥   8♥  9♥  10♥  J♥  Q♥  K♥ 
A♦   2♦   3♦   4♦   5♦   6♦   7♦   8♦  9♦  10♦  J♦  Q♦  K♦

out of these 52:


A♥   2♥   3♥   4♥   5♥   6♥   7♥   8♥  9♥  10♥  J♥  Q♥  K♥ 
A♦   2♦   3♦   4♦   5♦   6♦   7♦   8♦  9♦  10♦  J♦  Q♦  K♦
A♠   2♠   3♠   4♠   5♠   6♠   7♠   8♠  9♠  10♠  J♠  Q♠  K♠  
A♣   2♣   3♣   4♣   5♣   6♣   7♣   8♣  9♣  10♣  J♣  Q♣  K♣ 

That's 26 out of 52 or a probability of 26/52 which reduces to 1/2
---

d. A face card.
A face card and a head card are the same thing because if there's a 
face on it there's a head on it because a face is on a head, and all 
the heads have faces on them.

So that's the same as a.  3/13
---

e. A red face card
That's one of these 6


                                                J♥  Q♥  K♥ 
                                                J♦  Q♦  K♦

out of these 52:


A♥   2♥   3♥   4♥   5♥   6♥   7♥   8♥  9♥  10♥  J♥  Q♥  K♥ 
A♦   2♦   3♦   4♦   5♦   6♦   7♦   8♦  9♦  10♦  J♦  Q♦  K♦
A♠   2♠   3♠   4♠   5♠   6♠   7♠   8♠  9♠  10♠  J♠  Q♠  K♠  
A♣   2♣   3♣   4♣   5♣   6♣   7♣   8♣  9♣  10♣  J♣  Q♣  K♣ 

That's 6 out of 52 or a probability of 6/52 which reduces to 3/26


Edwin