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GCSE Mathematics Question Analysis Topic: Mathematics - Probability
A card is picked at random from a pack of 52 playing cards. Given that the picked card is a queen, the probability of this card to be a card of spade is:
Answer:
For GCSE Mathematics, you should know:
The number of spade cards is 13.
The number of queens in a spade set is only 1.
Therefore n(spade queen) = 13C1
n(Total number of cases) = 52C1
P(spade queen) = 13C1/52C1 = 13/52 = 1/4
The probability is 1/4.
Work hard for your GCSE Mathematics examination!
End of analysis. Great!
