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Lelechka [254]
3 years ago
14

A card is drawn at random from a deck of 52 playing cards. Find the probability that the card drawn is:

Mathematics
2 answers:
melomori [17]3 years ago
8 0

probability that the card drawn is:

  1. an ace or a king  = 0.1538
  2. a king or a diamond = 0.3269

<u>Step-by-step explanation:</u>

Here we have , A card is drawn at random from a deck of 52 playing cards. We need to find that Find the probability that the card drawn is:

  • an ace or a king

A deck of standard 52 cards contain four aces. There are four kings in a standard deck of playing cards. So ,we need to find probability that card drawn is either a ace or king i.e.

probability = \frac{Number-of-(ace+king)-cards}{total-number-of-cards}

⇒ probability = \frac{Number-of-(ace+king)-cards}{total-number-of-cards}

⇒ probability = \frac{8}{52}

⇒ probability = 0.1538

  • a king or a diamond

A deck of standard 52 cards contain four kings. There are 13 Diamonds in a standard deck of playing cards. So ,we need to find probability that card drawn is either a ace or king i.e.

probability = \frac{Number-of-(ace+king)-cards}{total-number-of-cards}

⇒ probability = \frac{Number-of-(ace+king)-cards}{total-number-of-cards}

⇒ probability = \frac{(13+4=17)}{52}

⇒ probability = \frac{(17)}{52}

⇒ probability =0.3269

Therefore, probability that the card drawn is:

  1. an ace or a king  = 0.1538
  2. a king or a diamond = 0.3269
anastassius [24]3 years ago
4 0

a) The probability of drawing an ace or king =  \frac{2}{13}

b) The probability of drawing a diamond or king =  \frac{4}{13}

Step-by-step explanation:

Step 1 :

Total number of cards in the deck = 52

We need to compute probability that card drawn is

a) ace or king

b) King or diamond

Step 2 :

a)

Number of ace in the pack = 4

Number of kings in the pack = 4

Hence the probability of selecting an ace or king =  \frac{8}{52} [total favorable divided by the total outcome] = \frac{2}{13}

Step 3:

b)

Number of king in the card deck = 4

Number of diamond in the card deck = 13

Number of diamond cards which is a king = 1

Total number of cards that can be drawn ( king or diamond) = 4 + 13 - 1 = 16

Hence probability that a diamond or king is drawn =  \frac{16}{52}  [total favorable divided by the total outcome]  =  \frac{4}{13}

Step 4 :

Answer :

a) The probability that card drawn is an ace or king =  \frac{2}{13}

b) The probability that card drawn is a diamond or king =  \frac{4}{13}

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