Posted by **grey** on Thursday, March 25, 2010 at 3:13pm.

A card is drawn at random from an ordinary deck of playing cards. Find the following odds.

A. Odds in favor of drawing a 5,6,7

B. Odds against drawing a king, queen, jack, or ace

D.Odds against drawing an even numbered (2,4,6,8,10)card.

Can I get some help with this question please.

- math -
**Reiny**, Thursday, March 25, 2010 at 3:19pm
there are 12 cards which are either 5,6, or 7

so Prob (a 5,6,or7) = 12/52 = 3/13

so prob (not a 5,6,or7 ) = 10/13

Odds in favour of a 5,6,or7 = (3/13)/(10/13) = 3/10

or 3 : 10 , the usual way of stating odds

Now try the others the same way, let me know what you get

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