Krishna
0

Step 1:  Know the basic facts needed to compute probabilities concerning cards

              There are a total of 52 cards in a standard deck of cards.

              There are 4 suit - diamonds (), spades (♠), hearts () and clubs (♣)


              Know more:  https://en.wikipedia.org/wiki/Standard_52-card_deck

        

              So, total number of out comes = 52


Step 2:  Determine the favorable outcomes

            Total 52 cards in a deck. Out of these, half the cards i.e. 26 cards are red

            and remaining cards are black. Also, there are 4 suits.

            So, there are 13 cards of each suits                              ( \because \frac{52}{4} = 13)


            Each suit has one King card.

            So, there are 2 kings in red- one of hearts and the other of diamonds.

            Thus, favorable outcomes = 2


Step 3:  Calculate the probability of selecting a red king from a deck of card

              

            The probability of selecting a red king from a deck of card = \frac{Favorable\ outcomes}{Total\ number\ of\ outcomes}    


                                                                                                         = \frac{2}{52}


                                                                                                         = \frac{1}{26}