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determine the probability of selecting each card

21 March 2013

the ace of spades, a 5, a 5 or a 9

21 March 2013

Ok so what we are working with here is discrete probability

22 March 2013

like flipping a coin, or rolling a dice, it is picking a card

22 March 2013

this means something will either happen or not happen, it can't be anywhere in between

22 March 2013

so to work out probabilities you take the number of outcomes, and divide it by the number of possibilities

22 March 2013

3/6 =0,5

22 March 2013

so if we want to know the probability of rolling an even number on a dice, it would be 0.5, because you could get 2,4 or 6, (3) and there are 1,2,3,4,5,6 (6) posibilities

22 March 2013

think how many cards are there, how many aces, how many 9s etc

22 March 2013

does this give you a hint for solving your problem?

22 March 2013

If you have a pack of cards with 13 cards in each of 4 suits then there are 52 in total. Leave the jokers out of the pack or there would be more than 52. Then, as Benjamin says, think for example how many cards out of 52 would be numbered 5.

22 March 2013

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