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What is the probability that it is either a heart card or diamond card, when a card is drawn from a well shuffled standard pack of 52 playing cards?

What is the probability that it is either a heart card or diamond card, when a card is drawn from a well shuffled standard pack of 52 playing cards? Correct Answer 1\/2

P(heart cards)=13/52

P(diamond cards)=13/52

P(heart or diamond)=13/52+13/52=1/2

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S1: The earliest reference to the playing card has been found in China, as long ago as the tenth century.
P: They appeared in Italy around 1320.
Q: Long before that the Chinese use paper money which was similar in design to the playing cards.
R: It is believed that perhaps travelling gypsies introduced them to Europe.
S: In olden days cards were used both for telling fortune and playing games.
S6: The current pack of 52 cards was only regulated in the seventeenth century.

The Proper sequence should be: